CHI - DEN

$29 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.
1 adult
0 bags

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 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Denver that are departing in the next months. 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.
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
$58Frontier
Find Deal
Tue, Feb 25 - Wed, Mar 5
8:15 am - 10:07 amMDW-DEN
2h 52mnonstop
8:55 pm - 12:17 amDEN-MDW
2h 22mnonstop
$58Frontier
Find Deal
Tue, Jan 14 - Wed, Jan 22
5:50 pm - 7:40 pmORD-DEN
2h 50mnonstop
8:29 pm - 11:59 pmDEN-ORD
2h 30mnonstop
$139United Airlines
Find Deal
Tue, Jan 21 - Tue, Jan 28
12:45 pm - 2:36 pmORD-DEN
2h 51mnonstop
8:29 pm - 11:59 pmDEN-ORD
2h 30mnonstop
$149United Airlines
Find Deal
Wed, Jan 15 - Sat, Jan 18
12:15 pm - 2:00 pmORD-DEN
2h 45mnonstop
7:05 pm - 10:35 pmDEN-ORD
2h 30mnonstop
$160Southwest
Find Deal
Wed, Feb 5 - Wed, Feb 5
8:05 am - 10:00 amMDW-DEN
2h 55mnonstop
6:10 pm - 9:30 pmDEN-MDW
2h 20mnonstop
$160Southwest
Find Deal
Wed, Feb 5 - Sat, Feb 8
5:35 pm - 7:16 pmORD-DEN
2h 41mnonstop
8:07 am - 11:45 amDEN-ORD
2h 38mnonstop
$169American Airlines
Find Deal
Sat, Jan 18 - Sun, Jan 26
12:44 pm - 2:28 pmORD-DEN
2h 44mnonstop
6:00 am - 9:36 amDEN-ORD
2h 36mnonstop
$172American Airlines
Find Deal
Thu, Jan 9 - Sat, Jan 18
9:35 am - 3:49 pmORD-DEN
7h 14m1 stop
4:15 pm - 9:58 pmDEN-ORD
4h 43m1 stop
$216Delta
Find Deal
Wed, Jan 22 - Wed, Jan 29
9:34 am - 1:58 pmMDW-DEN
5h 24m1 stop
7:10 am - 4:21 pmDEN-MDW
8h 11m1 stop
$216Delta
Find Deal
Sat, Jan 11 - Wed, Jan 15

Expert advice for your flight from Chicago to Denver

Our travel pros reveal their best tips for your Chicago to Denver journey.
Airlines
Frontier

Economy Bundle includes a carry-on bag and seat choice, ideal for budget travelers.


Premium Bundle offers priority boarding and extra legroom for just $20 more.

Read more about Frontierby Stefanie Waldek
United Airlines

Economy Plus offers 6 inches more legroom than standard economy seats, enhancing comfort.


Priority Boarding places you in Zone 2, ensuring overhead bin space for carry-ons.

American Airlines

Basic Economy offers Group 9 boarding and no free checked bags, ideal for light travelers.


Main Cabin Extra provides early boarding (Group 5) and complimentary drinks for a small fee.

Airports
ORD

ORD offers a 24-hour Dunkin' in Terminal 3 for late-night travelers. It's one of the few dining options available overnight.

Read more about ORDby Stefanie Waldek
MDW

MDW's compact layout makes it easy to navigate, with all concourses accessible from the central check-in and security area.

Read more about MDWby Stefanie Waldek
DEN

Take the RTD A line train from DEN to downtown Denver in about 40 minutes for a cost-effective travel option.

Read more about DENby Harriet Baskas
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier, United Airlines, ORD and MDW

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on American Airlines and DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

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.
Find cheap flights to Denver
Find cheap flights to Denver

Planning a trip from Chicago to Denver? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 round-trip flights from Chicago to Denver.
Our data shows that the cheapest route for a return flight from Chicago to Denver cost $59 and was between Chicago Midway Airport (MDW) and Denver (DEN). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $59.

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

The average price of all round-trip flights from Chicago to Denver clicked on KAYAK for each day over the last 12 months.
When flying from Chicago to Denver, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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 round-trip 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 $142 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $245 and $219 respectively.

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

The average round-trip 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.
No, with an average price for the route of $79, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Chicago to Denver, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks 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

$29
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 3% 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

  • 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.

  • 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 cheapest flight from Chicago to Denver?

    In the last 3 days, the lowest price for a flight from Chicago to Denver was $29 for a one-way ticket and $58 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 $245 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 $369 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 $82 or less one-way and $133 or less round-trip.
  • 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.
  • 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.
See more tips

Prefer to fly direct from Chicago to Denver?

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

Direct 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

Direct 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 4821 reviews
8.2Boarding
7.2Food
7.7Entertainment
8.7Crew
8.1Comfort
Airline reviews

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

10.0 ExcellentDawn, Nov 2024SLC - DEN
Read more Southwest reviews

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

One of the crew performed a hilarious skit to accompany the standard instructions. Passengers enjoyed it so much they applauded at the end!

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

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

Everything was great. Great service, excellent communication, and early arrival

Delta flight attendants poorly managed the boarding process and overhead storage. My bag was checked last minute and no claim ticket was provided. My bag is now lost. Complete incompetence by all flight crew involved.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

It was terrible, if they ran flights on time it would make a big difference.

Great flight. On-time, comfortable, clean aircraft, and offered snacks pre-flight to plan for a potentially turbulent route. I wish there was Wi-Fi an all Delta Aircrafts but for a short flight this is not much of a problem.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

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.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

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.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

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

Everything you need to know for your flight from Chicago to Denver

Information on your arrival and departure airports

Compare transportation modes for Chicago to Denver

Average priceAverage duration
Flights$4242h 41m
Trains$25218h 37m
Buses$37629h 00m

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