$40 Find Cheap Flights from Chicago O'Hare Airport 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 O'Hare Intl to Colorado departing on 4/20. 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 O'Hare Intl

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

Denver
Denvernonstop$37
Colorado Springs
Colorado Springs2 stops$255
Aspen
Aspennonstop$329
Vail
Vail1 stop$84
Grand Junction
Grand Junction1 stop$309
Durango
Durango1 stop$298
Montrose
Montrose1 stop$309
Hayden
Haydennonstop$264
Gunnison
Gunnison1 stop$309

Good to know

Low season

January

High season

July

Cheapest flight

$40
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Chicago to Vail

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport 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 O'Hare Airport to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago O'Hare Airport 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 O'Hare Airport 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 O'Hare Airport 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 O'Hare Airport 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 O'Hare Airport 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 March, April and May. The cheapest month to fly from Chicago is February.
  • Morning departure is around 6% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 4 airlines serving from O'Hare Intl 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 O'Hare Intl 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 4411 reviews
7.6Entertainment
8.2Boarding
8.1Comfort
7.1Food
8.7Crew
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

Our seats were all the way in back of the plane,

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

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

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.

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.
4/3Thu
nonstopFrontier
2h 50mORD-DEN
4/7Mon
nonstopFrontier
2h 34mDEN-ORD
$75
4/5Sat
nonstopFrontier
2h 50mORD-DEN
4/7Mon
nonstopFrontier
2h 34mDEN-ORD
$76
4/14Mon
1 stop
6h 15mORD-DEN
4/17Thu
nonstop
2h 25mDEN-ORD
$137
3/31Mon
1 stop
7h 43mORD-DEN
4/2Wed
nonstop
2h 34mDEN-ORD
$144
5/10Sat
nonstopAmerican Airlines
2h 43mORD-DEN
5/17Sat
nonstopAmerican Airlines
2h 32mDEN-ORD
$159
3/31Mon
2 stopsSouthwest
9h 25mORD-DEN
4/2Wed
nonstopSouthwest
2h 30mDEN-ORD
$179
4/10Thu
nonstopSouthwest
3h 00mORD-DEN
4/14Mon
2 stopsSouthwest
7h 20mDEN-ORD
$184
5/1Thu
nonstopAmerican Airlines
3h 00mORD-DEN
5/4Sun
nonstopAmerican Airlines
2h 29mDEN-ORD
$187
3/10Mon
nonstopUnited Airlines
3h 12mORD-HDN
3/17Mon
nonstopUnited Airlines
2h 47mHDN-ORD
$264
4/9Wed
1 stopUnited Airlines
5h 33mORD-COS
4/15Tue
nonstopUnited Airlines
2h 48mCOS-ORD
$265

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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.
4/20Sun
1 stopFrontier
8h 23mORD-EGE
$40
4/12Sat
nonstopFrontier
2h 57mORD-DEN
$40
5/10Sat
nonstopUnited Airlines
2h 49mORD-DEN
$80
4/22Tue
nonstopUnited Airlines
2h 54mORD-DEN
$85
4/3Thu
1 stopSouthwest
8h 50mORD-DEN
$95
4/3Thu
2 stopsSouthwest
8h 55mORD-DEN
$100
3/31Mon
1 stopSun Country Air
7h 43mORD-DEN
$101
2/28Fri
1 stopSun Country Air
27h 16mORD-DEN
$118
3/28Fri
1 stopAmerican Airlines
7h 52mORD-DEN
$133
4/1Tue
nonstopAmerican Airlines
2h 57mORD-HDN
$145

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Last minute flights from O'Hare Intl 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.
2/25Tue
nonstopFrontier
3h 03mORD-DEN
3/5Wed
nonstopFrontier
2h 32mDEN-ORD
$100
2/25Tue
nonstopFrontier
3h 03mORD-DEN
3/4Tue
nonstopFrontier
2h 32mDEN-ORD
$104
2/25Tue
nonstop
3h 03mORD-DEN
2/28Fri
multi-stop
25h 48mDEN-ORD
$218
2/23Sun
nonstop
3h 03mORD-DEN
2/28Fri
multi-stop
25h 48mDEN-ORD
$258
2/25Tue
nonstopSouthwest
2h 45mORD-DEN
3/4Tue
multi-stopSouthwest
6h 20mDEN-ORD
$289
2/25Tue
multi-stopSouthwest
7h 25mORD-DEN
3/4Tue
multi-stopSouthwest
7h 30mDEN-ORD
$324
2/25Tue
nonstopAmerican Airlines
2h 54mORD-DEN
2/26Wed
multi-stopAmerican Airlines
5h 13mDEN-ORD
$347
2/25Tue
nonstopAmerican Airlines
3h 03mORD-HDN
3/1Sat
multi-stopAmerican Airlines
6h 47mHDN-ORD
$436
2/25Tue
nonstopUnited Airlines
3h 10mORD-EGE
3/1Sat
nonstopUnited Airlines
2h 57mEGE-ORD
$439
2/25Tue
multi-stopUnited Airlines
6h 29mORD-EGE
3/1Sat
nonstopUnited Airlines
2h 57mEGE-ORD
$449

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Everything you need to know for your flight from O'Hare Intl to Colorado

Information on your arrival and departure airports

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