$35 Find Cheap Flights from Chicago to Colorado

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 Colorado departing on 3/19. 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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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Colorado, 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 Colorado, as well as popular online travel agencies
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Best Colorado Flight Deals from Chicago

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Denver
Denvernonstop$37
Colorado Springs
Colorado Springsnonstop$237
Aspen
Aspennonstop$329
Grand Junction
Grand Junction2 stops$273

Good to know

Low season

January

High season

July

Cheapest flight

$35
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Chicago O'Hare Airport to Denver

FAQs - booking Colorado flights

  • Are the pet relief areas at Denver International Airport (DEN)?

    In the Denver International Airport indoor pet relief area, travelers with pets and service animals can unwind and engage in enjoyable activities with their pets. The post-security center cores of gates A, B, and C are where you'll find the pet rest areas. The pet relief area includes an automatic hand dryer, wall-mounted faucet, paper towel dispenser, soap dispenser, artificial turf ground, artificial rock, and drainage.

  • Is there a nursing room at the Colorado Springs Airport (COS)?

    There are two Family Care Rooms located within security on the main Concourse of the Colorado Springs Airport . These rooms are available to nursing moms arriving at COS from Chicago. Both areas may be found between Gates 4 and 6, while the other pet relief area can be found between Gates 8 and 10. The rooms provide a waste bin, chair, a baby changing table, a faucet with running water, and a comfy seat.

  • Are there hotels near Denver International Airport (DEN) that offer complimentary airport shuttle services?

    Travelers who arrive late at the Denver International Airport (DEN) do not need to worry. Several hotels in Colorado offer free shuttle service from the airport. You can reserve a room in one of the hotels where you can stay during your vacation in Colorado. Some of the hotels are only 10-minute drive from the airport. Additionally, the airport has a layover room for travelers to rest and spend time before proceeding with their journey.

  • Are there facilities for people with reduced mobility at Chicago O'Hare International Airport (ORD)?

    Chicago's O'Hare International Airport is wheelchair-accessible. The airport has a motorized passenger lift that offers access to the adult changing table, an accessible wall-mount toilet, accessible showers, and a sink. In the rooms, there are emergency pull wires linked to O'Hare Communication Center. All of the buttons on the elevator panels have Braille and raised numbers. Every airline offers wheelchair assistance to the customer.

  • How long is the flight to Colorado from Chicago?

    2h 57m
    Flights to Aspen3h 07m
    Flights to Denver2h 42m
    Flights to Colorado Springs2h 43m
  • What is the cheapest flight to Colorado from Chicago?

    The cheapest ticket to Colorado from Chicago found in the last 72 hours was $35 one-way, and $37 round-trip. The most popular route is from Chicago to Vail, and the cheapest round-trip airline ticket found on this route in the last 72 hours was $55.

  • Which airlines fly to Colorado?

    United Airlines flies most frequently to Vail from Chicago. In general, Southwest, Air Canada and American Airlines fly the most to Colorado.

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

    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 Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to Colorado 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 Colorado?

    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 from Chicago to Colorado with an airline and back with another airline.

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

    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 from Chicago to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Colorado

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November and December. The cheapest month to fly from Chicago is May.
  • Morning departure is around 23% more expensive than an evening flight, on average*.
  • San Luis Valley Regional (ALS) is a perfect destination airport for those traveling from Chicago to southern parts of Colorado. You can take a one-stop flight aboard United Airlines, American Airlines, or Key Lime Airlines.
  • If you are looking for a place to relax and unwind after a long and tiring flight from Chicago, you can visit one of the several lounges at the Denver International Airport (DEN) in Colorado. Admirals Club, managed by American Airlines, is located at level 2 of Concourse A past security check offers a variety of refreshments for clients.
  • Most of Chicago's airports will allow you to book a trip to Colorado's Denver International Airport (DEN). United Airlines and Southwest Airlines offer direct flights from the airport to Chicago's O'Hare International Airport (ORD).
  • You can take a cab or bus for a trip into downtown Colorado Springs Airport (COS). To go downtown quickly and easily, a cab is your best bet. The trip to downtown Colorado Springs, only 19 km (12 miles) from the airport, will take around 20 minutes.
  • United Airlines offers nonstop service from O'Hare International Airport in Chicago to Northern Colorado Regional Airport (FNL). This service is available to passengers departing from Chicago and intending to fly directly to the northern part of Colorado.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Chicago to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Colorado. 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 Colorado? 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 4587 reviews
7.1Food
8.7Crew
7.7Entertainment
8.2Boarding
8.1Comfort
Airline reviews

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

8.0 ExcellentGavin, Jan 2025SEA - DEN
Read more Southwest reviews

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

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…

A bit expensive for the overall service; but the flight departed on time and arrived early.

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

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

Flight left early and arrived early. the whole trip was excellent.

Seats were really tight and the seat belts did not give enough slack.

I like in St George and prefer to fly out of CDC than SGU. Hopefully, they will continue the flights out of Cedar

Broken jer bridge. Poor communication about it. Lost 2 of 4 luggage pieces

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a 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?

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence.

The flight attendants in First Class were mediocre at best. They did not take our tray away until we were about to land and only did so when I press the call button. The United person at the United Club was asked to get us our boarding pass since we missed the flight due in Chicago. She argued that we did not have seats on the flight given to us in Moline. Furthermore, she was adamant that we did not have a First Class ticket. After I spent much time with her trying to show we were correct, she reluctantly agreed. She was probably the most incompetent ticketing person I have ever met and I have traveled 3 million miles on United plus many additional miles with other carriers. United has definitely deteriorated in more than on way.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We arrived early and finally made it to our gate almost an hour after.

Was a pain having to leave the plane and reboard but glad the plane was fixed

Plane was was better than th YVR to ORD flight but was a fraction of the distance. Fly your better planes on longer distance flights.

Nothing wrong with the flight itself. But due to 2+ hrs waiting in immigration and the additional security checkup in O’hare, I nearly missed the flight.

They need to improve their boarding process. Group 1 and/or paying first class passengers shouldn't be in the middle of boarding process

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.

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

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

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

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

Book cheap flights from Chicago to Colorado

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Chicago to Colorado found on KAYAK in the last 72 hours.
3/2Sun
nonstopFrontier
2h 52mMDW-DEN
3/4Tue
nonstopFrontier
2h 22mDEN-MDW
$75
2/15Sat
1 stopFrontier
8h 39mMDW-DEN
2/18Tue
nonstopFrontier
2h 22mDEN-MDW
$76
4/22Tue
nonstopAmerican Airlines
2h 54mORD-DEN
5/1Thu
nonstopAmerican Airlines
2h 29mDEN-ORD
$164
4/17Thu
nonstopSouthwest
2h 45mORD-DEN
4/22Tue
1 stopSouthwest
5h 05mDEN-ORD
$170
4/17Thu
1 stopSouthwest
5h 00mMDW-DEN
4/22Tue
1 stopSouthwest
3h 55mDEN-MDW
$175
5/8Thu
nonstopUnited Airlines
2h 55mORD-DEN
5/12Mon
nonstopUnited Airlines
2h 33mDEN-ORD
$177
4/18Fri
nonstopAmerican Airlines
2h 54mORD-DEN
4/22Tue
nonstopAmerican Airlines
2h 29mDEN-ORD
$178
3/25Tue
nonstopUnited Airlines
2h 56mORD-DEN
3/26Wed
nonstopUnited Airlines
2h 28mDEN-ORD
$199
3/12Wed
1 stopDelta
7h 41mORD-COS
3/19Wed
1 stopDelta
8h 31mCOS-ORD
$247
3/12Wed
2 stopsDelta
10h 27mORD-COS
3/19Wed
1 stopDelta
8h 31mCOS-ORD
$252

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to Colorado found on KAYAK in the last 72 hours.
3/19Wed
nonstopFrontier
3h 03mORD-DEN
$35
3/26Wed
nonstopFrontier
3h 03mORD-DEN
$36
4/2Wed
nonstopUnited Airlines
2h 55mORD-DEN
$70
3/26Wed
nonstopSouthwest
2h 40mMDW-DEN
$70
5/6Tue
nonstopUnited Airlines
2h 55mORD-DEN
$76
5/6Tue
nonstopSouthwest
2h 45mMDW-DEN
$76
3/3Mon
1 stopDelta
6h 51mORD-DEN
$109
3/29Sat
1 stopDelta
6h 23mMDW-DEN
$109
2/5Wed
nonstopAmerican Airlines
2h 52mORD-DEN
$149
7/29Tue
nonstopAmerican Airlines
2h 45mORD-COS
$156

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Search by price

Last minute flights from Chicago to Colorado

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to Colorado that are departing in the next 10 days.
2/4Tue
nonstopFrontier
2h 53mMDW-DEN
2/6Thu
nonstopFrontier
2h 22mDEN-MDW
$143
2/4Tue
nonstopFrontier
2h 53mMDW-DEN
2/17Mon
nonstopFrontier
2h 22mDEN-MDW
$153
2/4Tue
multi-stopDelta
13h 36mORD-DEN
2/5Wed
multi-stopDelta
19h 38mDEN-ORD
$353
2/4Tue
multi-stopDelta
7h 48mMDW-DEN
2/17Mon
multi-stopDelta
5h 37mDEN-MDW
$388
2/4Tue
nonstopAmerican Airlines
3h 21mORD-ASE
2/11Tue
multi-stopAmerican Airlines
6h 08mASE-ORD
$409
2/4Tue
multi-stopAmerican Airlines
8h 50mORD-ASE
2/11Tue
multi-stopAmerican Airlines
8h 34mASE-ORD
$419
2/2Sun
nonstopSouthwest
2h 55mORD-DEN
2/5Wed
nonstopSouthwest
2h 30mDEN-ORD
$460
2/2Sun
multi-stopSouthwest
5h 20mORD-DEN
2/5Wed
nonstopSouthwest
2h 30mDEN-ORD
$465
2/4Tue
multi-stopUnited Airlines
12h 03mORD-DEN
2/10Mon
multi-stopUnited Airlines
13h 49mDEN-ORD
$493
2/1Sat
nonstopUnited Airlines
3h 21mORD-ASE
2/6Thu
nonstopUnited Airlines
3h 08mASE-ORD
$494

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

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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