CHI - DEN

$28 Find Cheap Flights from Chicago to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Denver departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Denver, as well as popular online travel agencies
In the last 7 days travelers have searched 47,107,125 times on KAYAK, and here is why:

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Cheap Flight Deals from Chicago to Denver (CHI-DEN)

 
These are the cheapest deals for flights from Chicago to Denver currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Chicago to Denver

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Chicago to Denver.

Recent one-way flight deals from Chicago to Denver

Only flying one-way? Below are some of the best one-way flight deals from Chicago to Denver found on KAYAK recently.

Recent last minute flight deals from Chicago to Denver

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Chicago to Denver.

Recent direct flight deals from Chicago to Denver

The latest deals for direct flights from Chicago to Denver so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Chicago to Denver

Find recent round-trip train or bus tickets from Chicago to Denver.

All round-trip flight deals to Denver

The cheapest plane tickets to Denver found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:50 am - 8:53 amORD-DEN
3h 03mnonstop
9:53 am - 1:25 pmDEN-ORD
2h 32mnonstop
$57Frontier
Find Deal
Wed, Feb 19 - Tue, Feb 25
8:15 am - 10:07 amMDW-DEN
2h 52mnonstop
8:55 pm - 12:13 amDEN-MDW
2h 18mnonstop
$57Frontier
Find Deal
Wed, Jan 8 - Tue, Jan 14
8:50 pm - 10:36 pmORD-DEN
2h 46mnonstop
7:00 am - 10:45 amDEN-ORD
2h 45mnonstop
$169American Airlines
Find Deal
Wed, Dec 11 - Thu, Dec 12
8:35 pm - 10:20 pmMDW-DEN
2h 45mnonstop
8:55 pm - 12:15 amDEN-MDW
2h 20mnonstop
$170Southwest
Find Deal
Tue, Dec 24 - Mon, Dec 30
8:42 am - 10:34 amORD-DEN
2h 52mnonstop
6:00 am - 9:36 amDEN-ORD
2h 36mnonstop
$172American Airlines
Find Deal
Thu, Jan 9 - Sat, Jan 11
12:45 pm - 2:34 pmORD-DEN
2h 49mnonstop
6:00 pm - 9:30 pmDEN-ORD
2h 30mnonstop
$183United Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 24
7:00 am - 8:45 amORD-DEN
2h 45mnonstop
7:05 pm - 10:35 pmDEN-ORD
2h 30mnonstop
$200Southwest
Find Deal
Wed, Dec 4 - Wed, Dec 11
9:45 pm - 11:18 pmORD-DEN
2h 33mnonstop
8:34 pm - 11:57 pmDEN-ORD
2h 23mnonstop
$205United Airlines
Find Deal
Wed, May 7 - Sun, May 11
12:25 pm - 4:12 pmORD-DEN
4h 47m1 stop
2:23 pm - 7:45 pmDEN-ORD
4h 22m1 stop
$216Delta
Find Deal
Wed, Dec 11 - Wed, Dec 18
1:30 pm - 5:34 pmMDW-DEN
5h 04m1 stop
12:50 am - 8:58 amDEN-MDW
7h 08m1 stop
$216Delta
Find Deal
Wed, Dec 11 - Fri, Dec 13
6:50 am - 8:53 amORD-DEN
3h 03mnonstop
$28Frontier
Find Deal
Wed, Feb 12
8:15 am - 10:07 amMDW-DEN
2h 52mnonstop
$28Frontier
Find Deal
Tue, Jan 7
7:10 am - 9:00 amORD-DEN
2h 50mnonstop
$79United Airlines
Find Deal
Wed, Jan 8
8:20 pm - 10:13 pmORD-DEN
2h 53mnonstop
$85United Airlines
Find Deal
Tue, Dec 24
10:30 pm - 12:10 amMDW-DEN
2h 40mnonstop
$85Southwest
Find Deal
Thu, Dec 19
8:30 am - 10:14 amORD-DEN
2h 44mnonstop
$90American Airlines
Find Deal
Tue, Dec 10
9:19 pm - 11:07 pmORD-DEN
2h 48mnonstop
$98American Airlines
Find Deal
Tue, Dec 31
2:35 pm - 4:20 pmMDW-DEN
2h 45mnonstop
$98Southwest
Find Deal
Sat, Feb 1
6:15 am - 1:16 pmORD-DEN
8h 01m1 stop
$108Delta
Find Deal
Tue, Jan 14
6:00 am - 11:10 amMDW-DEN
6h 10m1 stop
$108Delta
Find Deal
Tue, Jan 7
6:00 am - 7:45 amORD-DEN
2h 45mnonstop
8:40 am - 12:15 pmDEN-ORD
2h 35mnonstop
$81Frontier
Find Deal
Mon, Nov 25 - Thu, Nov 28
6:30 am - 8:16 amMDW-DEN
2h 46mnonstop
6:10 pm - 9:32 pmDEN-MDW
2h 22mnonstop
$81Frontier
Find Deal
Sun, Nov 24 - Wed, Dec 25
9:37 pm - 11:25 pmMDW-DEN
2h 48mnonstop
9:45 am - 1:10 pmDEN-MDW
2h 25mnonstop
$85Frontier
Find Deal
Mon, Nov 25 - Thu, Nov 28
6:00 am - 7:45 amORD-DEN
2h 45mnonstop
10:28 am - 7:01 pmDEN-ORD
7h 33m1 stop
Mon, Nov 25 - Mon, Dec 2
6:00 am - 7:45 amORD-DEN
2h 45mnonstop
4:55 pm - 10:25 amDEN-ORD
16h 30m1 stop
Mon, Nov 25 - Tue, Dec 3
1:30 pm - 5:37 pmMDW-DEN
5h 07m1 stop
12:35 am - 8:50 amDEN-MDW
7h 15m1 stop
$301Delta
Find Deal
Mon, Nov 25 - Sun, Dec 1
10:15 am - 5:37 pmORD-DEN
8h 22m1 stop
12:35 am - 9:27 amDEN-ORD
7h 52m1 stop
$337Delta
Find Deal
Mon, Nov 25 - Sun, Dec 1
7:00 am - 8:45 amORD-DEN
2h 45mnonstop
7:05 pm - 10:35 pmDEN-ORD
2h 30mnonstop
$461Southwest
Find Deal
Mon, Nov 25 - Wed, Dec 4
7:10 am - 9:00 amORD-DEN
2h 50mnonstop
6:00 am - 9:31 amDEN-ORD
2h 31mnonstop
$494United Airlines
Find Deal
Mon, Nov 25 - Tue, Dec 3
1:35 pm - 3:15 pmMDW-DEN
2h 40mnonstop
5:25 pm - 8:45 pmDEN-MDW
2h 20mnonstop
$687Southwest
Find Deal
Thu, Nov 21 - Thu, Nov 21
8:15 am - 10:07 amMDW-DEN
2h 52mnonstop
8:55 pm - 12:13 amDEN-MDW
2h 18mnonstop
$57Frontier
Find Deal
Wed, Jan 8 - Tue, Jan 14
6:50 am - 8:53 amORD-DEN
3h 03mnonstop
9:53 am - 1:25 pmDEN-ORD
2h 32mnonstop
$57Frontier
Find Deal
Wed, Feb 19 - Tue, Feb 25
8:15 am - 10:07 amMDW-DEN
2h 52mnonstop
6:10 pm - 9:32 pmDEN-MDW
2h 22mnonstop
$58Frontier
Find Deal
Tue, Dec 10 - Wed, Dec 18
10:27 pm - 12:20 amMDW-DEN
2h 53mnonstop
6:10 pm - 9:32 pmDEN-MDW
2h 22mnonstop
$59Frontier
Find Deal
Wed, Dec 18 - Wed, Dec 25
8:50 pm - 10:36 pmORD-DEN
2h 46mnonstop
7:00 am - 10:45 amDEN-ORD
2h 45mnonstop
$169American Airlines
Find Deal
Wed, Dec 11 - Thu, Dec 12
8:35 pm - 10:20 pmMDW-DEN
2h 45mnonstop
6:55 am - 10:25 amDEN-MDW
2h 30mnonstop
$170Southwest
Find Deal
Tue, Dec 24 - Tue, Dec 31
8:42 am - 10:34 amORD-DEN
2h 52mnonstop
6:00 am - 9:36 amDEN-ORD
2h 36mnonstop
$172American Airlines
Find Deal
Thu, Jan 9 - Sat, Jan 11
12:45 pm - 2:34 pmORD-DEN
2h 49mnonstop
6:00 pm - 9:30 pmDEN-ORD
2h 30mnonstop
$183United Airlines
Find Deal
Tue, Dec 17 - Tue, Dec 24
6:30 am - 8:10 amORD-DEN
2h 40mnonstop
7:05 am - 10:45 amDEN-ORD
2h 40mnonstop
$184Southwest
Find Deal
Sat, Dec 14 - Sun, Dec 15
9:45 pm - 11:18 pmORD-DEN
2h 33mnonstop
8:34 pm - 11:57 pmDEN-ORD
2h 23mnonstop
$205United Airlines
Find Deal
Wed, May 7 - Sun, May 11
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$252Amtrak
Find Deal
Thu, Dec 5 - Sat, Dec 7
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$252Amtrak
Find Deal
Thu, Dec 5 - Sat, Dec 7
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Wed, Dec 11 - Mon, Dec 16
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Sat, Dec 7 - Mon, Dec 9
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Thu, Dec 12 - Sun, Dec 15
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Thu, Dec 12 - Mon, Dec 16
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Fri, Dec 6 - Sun, Dec 8
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Thu, Nov 28 - Thu, Dec 5
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Wed, Dec 11 - Sat, Dec 14
2:00 pm - 7:56 amChicago Union-
Denver Union
18h 56mnonstop
6:59 pm - 2:39 pmDenver Union-
Chicago Union
18h 40mnonstop
$276Amtrak
Find Deal
Fri, Dec 6 - Sun, Dec 8

Flights from Chicago to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Chicago to Denver to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to Denver flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Chicago to Denver.
Our data shows that the cheapest route for a one-way flight from Chicago to Denver cost $46 and was between Chicago Midway Airport and Denver. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $68.

What’s the cheapest day of the week to fly from Chicago to Denver?

The average price of all flights from Chicago to Denver clicked on KAYAK for each day over the last 12 months.
For Chicago to Denver, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Chicago, the best deals are generally found on Wednesday, with Sunday being the most expensive.

What is the cheapest month to fly from Chicago to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago to Denver is May, where tickets cost $143 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $224 and $222 respectively.

Can I save money by flying with a layover from Chicago to Denver?

The average price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $529 on average

How far in advance should I book a flight from Chicago to Denver?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago to Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 145 days before departure.
 AI-powered savings tips

How to save more on a Chicago to Denver flight

When planning a trip from Chicago to Denver, it's important to consider the day of the week and month you choose to fly. Generally, Tuesdays and Saturdays are the cheapest days to fly, while April and May offer the most affordable monthly rates.

Cheapest Route: Opt for flights from Chicago Midway (MDW) to Denver (DEN) for the most cost-effective route.

Booking Advance: Book your flight at least 16 days in advance to get the best deal.

Budget Airline: Frontier Airlines typically offers the cheapest fares for this route.

Flight Type: Direct flights are generally cheaper than those with a layover for this particular route.

This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK. 


Good to know

Low season

January

High season

July

Cheapest flight

$28
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Chicago O'Hare Airport to Denver

When to book flights from Chicago to Denver

Are your dates flexible? Find out the best times to travel from Chicago to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to Denver

  • Is there public transportation from Denver International Airport (DEN) to downtown Denver?

    The distance between downtown Denver and Denver International Airport (DEN) is about 23 miles. The easiest and most convenient way of getting there is via The A-Line commuter train in a travel time of 37min. The train station is located at the Transit Center, on the ground level side of Westin.

  • How do I get to the Denver Museum of Nature & Science from Denver International Airport (DEN)?

    Denver Museum of Nature & Science lies about 16 miles from Denver International Airport (DEN). There are several transportation options connecting the two destinations. If you’re traveling on a budget, then line 40 bus is a perfect choice as it helps you save a few dollars, and you’ll be there in about 50min. However, if you value convenience and privacy, take a taxi and be there in about 27min.

  • Are there car rentals from Denver International Airport (DEN) to the city center of Denver?

    You can find several car rental companies at Denver International Airport (DEN), most of them located about a 5min drive from the airport. From the baggage claim area, continue out the double-door exits on either side of the terminal, and look out for a shuttle that will connect you to this point.

  • Are there any services for passengers with disabilities at the Denver International Airport (DEN) upon their arrival?

    Denver International Airport (DEN) offers services to passengers with disabilities and limited mobility. However, it’s critical to pre-book the services with your airline. Besides the wheelchair-accessible terminals and counters, there is an elevator to aid your passage from one floor to another.  

  • What is the fastest way to get from downtown Chicago to Chicago Midway International Airport (MDW)?

    By far the fastest way to Chicago Midway International Airport (MDW) is on the Chicago L Trains. The Orange Line train runs from downtown to Chicago Midway Airport (MDW) in about 20–25 minutes. Riders may purchase either a single ride, 1-day or 3-day ticket for the trip, depending on their needs.

  • Where can I get an Uber at Denver International Airport (DEN)?

    Once travelers have collected their luggage they should request their ride from Uber. Standard sized Ubers can be met on Level 5 Island 5, while Uber Black and SUVs should be met on Level 5, Island 2. Please take note if you are on the east or west side of the airport when requesting your Uber.

  • Are there pet relief areas at Chicago Midway International Airport?

    Chicago Midway International Airport (MDW) has two pet relief areas. One is indoors and located next to gate A5, with synthetic grass and a sitting area, while the outdoor facility, which is a fenced area that includes bags for dog waste and benches, is located at the south end of the lower level.

  • Does Denver International Airport (DEN) offer a cell phone lot for those picking up passengers?

    The free cell phone lot, quaintly named the Final Approach, is located about three miles from the airport on Pena Blvd. Those meeting passengers should wait here for travelers to arrive on their flights and collect their bags since there is no waiting or parking is allowed curbside at the terminal buildings.

  • What is the cheapest flight from Chicago to Denver?

    In the last 3 days, the lowest price for a flight from Chicago to Denver was $28 for a one-way ticket and $57 for a round-trip.

  • Do I need a passport to fly between Chicago and Denver?

    No

  • Which airports will I be using when flying from Chicago to Denver?

    There are 3 airports in Chicago (Chicago Midway, Chicago O'Hare Intl, and Chicago Greater Rockford.) and only 1 airport in Denver (Denver Intl). The cheapest flights are generally found on the Chicago O'Hare Airport to Denver Intl flight route.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Denver?

    American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Chicago to Denver flight route.

  • Which aircraft models fly most regularly from Chicago to Denver?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Chicago to Denver flight route.

  • Which airline alliances offer flights from Chicago to Denver?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and Denver, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Chicago to Denver?

    There are nonstop flights from Chicago to Denver on a daily basis.

  • Which is the best airline for flights from Chicago to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Chicago to Denver are Southwest and Delta. With an average price for the route of $243 and an overall rating of 8.1, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $385 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Chicago to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Chicago to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $75 or less one-way and $115 or less round-trip.
  • Chicago O’Hare International Airport (ORD) has mother’s rooms in each terminal. The facilities offer comfortable rooms for traveling mothers to care for young children, nurse and use a breast pump. If you’re using Terminal 2, you’ll find this amenity at Concourse F, Crossover Between Gates E5 and F9. At Terminal 3, it’s at the Rotunda, next to the Yoga Room.
  • When the kids are along for the trip from Chicago to Denver, take them to the Family Lounge, located in Terminal 2 past security checkpoint Chicago O’Hare International Airport (ORD). Vibrant seating arrangements are accompanied by convenient device charging stations, while travelers with infants will find designated stroller parking available. Throughout the year, particularly during festive seasons like the holidays, live entertainment graces the lounge with performances from musicians, caricature artists, and more.
  • Check with your airline if you can bring pets on board. For instance, Frontier Airlines allows passengers to bring cats and dogs in the cabin. However, the pets must have the necessary documentation, including the anti-rabies vaccine certificate. Still, you must restrict them in their cages to avoid disturbing other passengers.
  • Travelers on flights from Chicago to Denver looking for a spacious and luxurious place to spend some time before their flight can head to the United Club located in Terminal 1, Concourse B of Chicago O’Hare International Airport (ORD). This clean and quiet lounge is the perfect spot to work or relax before your flight. They offer a full buffet, a wide array of beverages and snacks and plenty of tables and power outlets to get any last-minute work done before your flight.
  • If you’ll be flying United Airlines from Chicago to Denver International Airport (DEN), you’ll be glad to know that the carrier has a hub at Chicago O’Hare International Airport (ORD). Passengers flying with this airline use Terminal 1 at ORD. There’s a shuttle bus connecting the Parking Lot F to this terminal, and travelers get fast-lane service when checking in.
  • Travelers on flights from Chicago to Denver looking for an authentic Mexican sandwich should stop by Tortas Frontera by Rick Bayless. The torta is the signature dish at this quaint restaurant located at Termninal 5 Concourse M, Terminal 1 Concourse B, and Terminal 3 Concourse K of Chicago O’Hare International Airport (ORD). In addition to great tortas, Tortas by Rick Bayless also features a guacamole bar, fresh tortilla chips and salsa, plus a full line of salads and craft beers.
  • There are several charming hotels near Denver International Airport (DEN) ideal for those who will be arriving late. Plan to book a comfortable room at the Staybridge Suites Denver International Airport or Residence Inn by Marriott Denver Airport/Convention Center for a relaxing night before connecting to your destination the next day.
  • When looking to arrive in comfort and style in Denver, your first choice should be Peak 1 Express. Peak 1 offers affordable and safe transportation in their full line of Mercedes Benz Sprinters. Whether you are headed to downtown Denver or one of Denver’s many ski resorts, Peak 1 can get you there in style and in comfort.
  • When looking for a hotel that is both upscale and convenient, the The Westin Denver International Airport (DEN) is the perfect spot. This hotel's intriguing design is changing the way travelers think about airport hotels. With convenient access to both downtown Denver and the wealth of ski resorts the Colorado mountains offer, this property has something for everyone.
  • If you’re departing from Chicago Midway International Airport (MDW), keep in mind that the airport has a road system running between the terminal and the secure area. A pedestrian bridge connects the two buildings, and passengers must first pass through the terminal building to clear security before entering the concourse areas. Once inside the secure area, you’ll arrive at the central market, which features a large seating area, shops and restaurants.
See more tips

Prefer to fly non-stop from Chicago to Denver?

Find which airlines fly direct from Chicago to Denver Intl Airport, which days they fly and book direct flights.

Nonstop departures

Chicago to Denver Intl

Monday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +15 more

Aer Lingus, Air Canada, +16 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Thursday

Aer Lingus, Air Canada, American Airlines, +15 more

Aer Lingus, Air Canada, +16 more

Friday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Saturday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Sunday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

See more direct flights

Nonstop returns

Denver Intl to Chicago

Monday

Aer Lingus, Air Canada, American Airlines, +15 more

Aer Lingus, Air Canada, +16 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Thursday

Aer Lingus, Air Canada, American Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Friday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Saturday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Sunday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

See more direct flights
See more direct flights

Top 5 airlines serving from Chicago to Denver

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
SouthwestOverall score based on 5015 reviews
8.2Boarding
8.1Comfort
7.7Entertainment
8.7Crew
7.2Food
Airline reviews

Excellent experience. WiFi worked on this leg of My trip

10.0 ExcellentDONALD, Nov 2024MDW - MCO
Read more Southwest reviews

Excellent experience. WiFi worked on this leg of My trip

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

I love no assigned seats and bags fly free. If Private Equity gets their way and forces Southwest to change they will be everyone else and I will stop being loyal to them. DON'T CHANGE YOUR BUSINESS MODEL!!!

wifi wasn't working correctly so couldn't watch live tv

Flight was delayed by 12 minutes. Boarding wasn’t fun. The crew was nice though.

Crew always seems to be unprofessional no matter what Southwest flight I fly

The 700 model seating is too tight both seat size & leg room

Flight was delayed more than 2 hour do the scheduling issues and then some confusing weight and balance matters, followed by a miscommunication with the tower on which runway was going to be used based on the airplane weight. All these things should have been figured out in advance. Instead of arriving at 12:30 a.m. we arrived at 2:30 a.m. very difficult to find a taxi or other transport at SFO. Luggage was delayed. An extension of an unpleasant flight day

Being paid like a full service airline , I felt some features like no screen on seat, very poor entertainment content and no headphone provided. I like the checked bag benefit. Open seating concept is not nicely implemented as people were boarding out of order.

It good. Just not that plane didn’t have power outlets to charge devices etc.

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Good and consistent Printer in lounge did not work for me :(

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

Bottom seat cushion is almost non existent. Very uncomfortable seat.

Delta was great the entertainment was outdated. Screen was very small and didn’t work.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Pleasant service from the crew. Arrived early. Efficient boarding and deplaning. Great job!

Everything was perfect except the pad at the top of the seat back. It pushes my head forward in a very uncomfortable position and it is not removable.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

I had a TERRIBLE experience with the AA crew. I believe it was disability-related. It’s unlikely I will fly AA again.

Baby cried a lot. Nothing anyone could do about it. Just part of flying.

The flight crew was fantastic! Which the seats had a small TV.

The flight was delayed till next day ! They kept delaying every 30 minutes then after 3 hours they delayed it till next day. We kept waiting in line standing more than an hour to get the hotel and meal vouchers. There was no communication at all. Everything was bad

Smoothe flight. Pilot and crew did a great job. Uncomfortable seat in this jet, felt worn out

seats were way too small. Too short of a flight to offer amenities.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

Perfect flight. Efficient boarding, on time take off and early arrival. Generally smooth flight.

American is a steady for me. I always get what I expect from them. Sincere effort to get me from one place to another.

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

Stuck in Phoenix for two days, not even a hotel voucher offered.

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...

Both flights were delayed. The sizing of bags is crazy. I know it is advertised as a no frills cheaper option but it does feel like you are being extorted for money the whole way-- $20 dollars to talk to a gate agent? Charging for soda a pretzels? I don't think I will be flying Frontier again if I can help it. That said, all the staff were wonderful.

Staff members pretty horrible when boarding. No care for customers

Frontier is definitely a good option for people traveling light or on a budget - just remember to bring your own entertainment and your own headphones if you need them.

The plane was very clean, the flight attendants were chipper and accommodating. It was roomy

I didn’t have enough time to catch my connecting flight and had to use a different Airline. I will be requesting a refund.

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2/12Wed
nonstopFrontier
3h 03mORD-DEN
$28
1/7Tue
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2h 52mMDW-DEN
$28
1/8Wed
nonstopUnited Airlines
2h 50mORD-DEN
$79
12/24Tue
nonstopUnited Airlines
2h 53mORD-DEN
$85
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nonstopSouthwest
2h 40mMDW-DEN
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nonstopAmerican Airlines
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12/31Tue
nonstopAmerican Airlines
2h 48mORD-DEN
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2/1Sat
nonstopSouthwest
2h 45mMDW-DEN
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1/14Tue
1 stopDelta
8h 01mORD-DEN
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1/7Tue
1 stopDelta
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These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to Denver that are departing in the next 10 days.
11/25Mon
nonstopFrontier
2h 45mORD-DEN
11/28Thu
nonstopFrontier
2h 35mDEN-ORD
$81
11/24Sun
nonstopFrontier
2h 46mMDW-DEN
12/25Wed
nonstopFrontier
2h 22mDEN-MDW
$81
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nonstopFrontier
2h 48mMDW-DEN
11/28Thu
nonstopFrontier
2h 25mDEN-MDW
$85
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nonstop
2h 45mORD-DEN
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multi-stop
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$242
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nonstop
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multi-stop
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$272
11/25Mon
multi-stopDelta
5h 07mMDW-DEN
12/1Sun
multi-stopDelta
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$301
11/25Mon
multi-stopDelta
8h 22mORD-DEN
12/1Sun
multi-stopDelta
7h 52mDEN-ORD
$337
11/25Mon
nonstopSouthwest
2h 45mORD-DEN
12/4Wed
nonstopSouthwest
2h 30mDEN-ORD
$461
11/25Mon
nonstopUnited Airlines
2h 50mORD-DEN
12/3Tue
nonstopUnited Airlines
2h 31mDEN-ORD
$494
11/21Thu
nonstopSouthwest
2h 40mMDW-DEN
11/21Thu
nonstopSouthwest
2h 20mDEN-MDW
$687

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