$36 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 8/11. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
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$70
Aspen
Aspennonstop$191
Grand Junction
Grand Junction1 stop$247
Denver
Denvernonstop$70
Aspen
Aspennonstop$191
Grand Junction
Grand Junction1 stop$247

Cheap Flights from Chicago to Colorado

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Colorado 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Colorado

Sat, Aug 9 - Wed, Aug 13
Frontier Logo
7:00 am - 8:53 amORD-DEN
2h 53mnonstop
Frontier Logo
8:53 pm - 12:32 amDEN-ORD
2h 39mnonstop
$70Frontier
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Wed, Aug 6 - Wed, Aug 13
Frontier Logo
7:00 am - 8:53 amORD-DEN
2h 53mnonstop
Frontier Logo
8:53 pm - 12:32 amDEN-ORD
2h 39mnonstop
$74Frontier
Find Deal
Sat, Aug 16 - Mon, Aug 18
Southwest Logo
7:00 am - 8:40 amORD-DEN
2h 40mnonstop
Southwest Logo
7:30 pm - 11:05 pmDEN-ORD
2h 35mnonstop
$93Southwest
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Sat, Aug 16 - Mon, Aug 18
Southwest Logo
7:25 pm - 9:05 pmMDW-DEN
2h 40mnonstop
Southwest Logo
7:45 am - 11:05 amDEN-MDW
2h 20mnonstop
$93Southwest
Find Deal
Fri, Sep 5 - Sun, Sep 7
American Airlines Logo
8:30 pm - 10:16 pmORD-DEN
2h 46mnonstop
American Airlines Logo
7:16 am - 10:48 amDEN-ORD
2h 32mnonstop
$119American Airlines
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Wed, Aug 6 - Thu, Aug 7
United Airlines Logo
5:00 am - 6:43 amORD-DEN
2h 43mnonstop
United Airlines Logo
6:00 am - 9:41 amDEN-ORD
2h 41mnonstop
$131United Airlines
Find Deal
Sat, Aug 16 - Wed, Aug 20
United Airlines Logo
9:15 am - 11:08 amORD-COS
2h 53mnonstop
United Airlines Logo
12:02 pm - 3:43 pmCOS-ORD
2h 41mnonstop
$133United Airlines
Find Deal
Sat, Aug 23 - Sat, Aug 30
American Airlines Logo
9:50 am - 11:37 amORD-COS
2h 47mnonstop
American Airlines Logo
12:07 pm - 3:50 pmCOS-ORD
2h 43mnonstop
$134American Airlines
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Sat, Aug 23 - Tue, Aug 26
Delta Logo
1:30 pm - 8:41 pmORD-COS
8h 11m1 stop
Delta Logo
11:11 am - 4:45 pmCOS-ORD
4h 34m1 stop
$217Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
11:05 am - 8:41 pmORD-COS
10h 36m2 stops
Delta Logo
11:11 am - 4:45 pmCOS-ORD
4h 34m1 stop
$222Delta
Find Deal
Useful Info

KAYAK's insights & trends for Chicago to Colorado flights

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

What is the cheapest Chicago to Colorado 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 Colorado.

The cheapest ticket to Colorado from Chicago found in the last 72 hours was to Denver, at $126 round-trip. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $126.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $543 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Colorado, 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 Colorado is September, when tickets cost $154 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $231 and $221 respectively.

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

The average price of all round-trip flights from Chicago to Colorado clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Colorado on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Chicago to Colorado. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

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 Colorado, 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 Colorado, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonApril
High seasonJuly
Cheapest flight$36
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Chicago Midway 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 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.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the evening, when round-trip flights cost $215 on average. Morning departures are around 21% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $307.

Top tips for finding cheap flights to Colorado

  • 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.

Reviews of the 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.
8.0
SouthwestOverall score based on 4252 reviews
7.0Food
7.6Entertainment
8.6Crew
8.0Comfort
8.1Boarding
Airline reviews

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

4.0 OkayAnonymous, Jun 2025MDW - LGA
Read more Southwest reviews

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

WiFi on the flight was not working. Thus, entertainment options were limited.

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 😮.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

After all the weather issues at least they got me to my destination the next day

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

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

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

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.

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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