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$67+ Cheap flights from Chicago (CHI) to Colorado

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Chicago to Colorado

Cheapest flights from Chicago to Colorado
Explore the most affordable flight options available from Chicago to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Super.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:00 amORD - DEN
Nonstop2h 56mFrontier
Wed 12/318:45 pmDEN - ORD
Nonstop2h 27mFrontier
Deal found 12/15$166
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:45 amORD - DEN
Nonstop2h 50mUnited Airlines
Thu 1/16:00 amDEN - ORD
Nonstop2h 44mUnited Airlines
Deal found 12/14$167
This Southwest deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 pmMDW - DEN
1 stop5h 25mSouthwest
Thu 12/2512:40 pmDEN - MDW
Nonstop2h 15mSouthwest
Deal found 12/15$167
This Frontier deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amORD - DEN
Nonstop2h 56mFrontier
Wed 12/318:45 pmDEN - ORD
Nonstop2h 27mFrontier
Deal found 12/15$183
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 amORD - DEN
Nonstop2h 56mFrontier
Thu 12/258:45 pmDEN - ORD
Nonstop2h 27mFrontier
Deal found 12/14$190
This CheapOair deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:01 pmMDW - DEN
Nonstop2h 45mFrontier
Thu 1/86:00 amDEN - MDW
1 stop31h 06mFrontier
Deal found 12/14$194
This Frontier deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - DEN
1 stop12h 04mFrontier
Thu 1/83:02 pmDEN - ORD
Nonstop2h 43mFrontier
Deal found 12/14$197
This Cheapflightsfares deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:47 pmORD - DEN
1 stop21h 29mFrontier
Wed 12/318:45 pmDEN - ORD
Nonstop2h 27mFrontier
Deal found 12/14$200
This CheapOair deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:10 pmMDW - DEN
1 stop18h 14mFrontier
Thu 1/811:59 pmDEN - MDW
1 stop22h 10mFrontier
Deal found 12/15$211
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:15 amMDW - DEN
2 stops39h 58mFrontier
Wed 1/710:29 pmDEN - MDW
1 stop12h 16mFrontier
Deal found 12/15$214
This Southwest deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:15 pmMDW - DEN
1 stop5h 25mSouthwest
Wed 12/317:55 amDEN - MDW
Nonstop2h 25mSouthwest
Deal found 12/14$228
This Expedia deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 amMDW - DEN
1 stop27h 33mFrontier
Wed 12/317:00 amDEN - MDW
1 stop12h 45mFrontier
Deal found 12/15$243

Find flight deals from Chicago to Colorado

Keep the following information in mind while searching for Chicago to Colorado flight deals. Data was last updated December 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$106
(Kiwi.com)

One-way from

$67
(Super.com)

Popular in

December

Cheapest in

January

Average price

$273

Good round-trip deal

$178 or less

Good one-way deal

$134 or less
Provider with most accurate pricing for Chicago (CHI)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Denver Intl flights.
Search Deals
From Chicago (CHI) to Colorado
Search Deals
One-way flight from Chicago (CHI) to Colorado
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Colorado.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Chicago to Colorado that are best for you.

Fly from

Chicago

Fly to

Colorado

Route

Depart

Return

Price

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Thu 1/8

12:41 pm-9:38 pm

1 stop9h 57m

Denver Intl

Mon 1/12

10:43 am-2:05 pm

Nonstop2h 22m

$114

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Wed 1/14

10:05 am-11:50 am

Nonstop2h 45m

Denver Intl

Wed 1/21

12:05 pm-3:25 pm

Nonstop2h 20m

$173

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 1/1

9:40 pm-11:38 pm

Nonstop2h 58m

Denver Intl

Tue 1/6

6:00 am-9:43 am

Nonstop2h 43m

$175

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 1/17

7:40 pm-9:25 pm

Nonstop2h 45m

Denver Intl

Wed 1/21

7:00 am-1:25 pm

1 stop5h 25m

$175

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Wed 1/14

7:00 am-8:49 am

Nonstop2h 49m

Denver Intl

Wed 1/21

3:15 pm-6:46 pm

Nonstop2h 31m

$179

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 2/7

7:40 pm-9:25 pm

Nonstop2h 45m

Denver Intl

Tue 2/10

9:45 am-1:10 pm

Nonstop2h 25m

$179

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Wed 1/21

5:35 pm-7:20 pm

Nonstop2h 45m

Denver Intl

Sun 1/25

7:40 am-11:10 am

Nonstop2h 30m

$185

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Mon 2/23

2:40 pm-4:36 pm

Nonstop2h 56m

Denver Intl

Wed 2/25

7:24 pm-10:53 pm

Nonstop2h 29m

$187

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 2/21

3:15 pm-4:55 pm

Nonstop2h 40m

Denver Intl

Tue 2/24

9:45 am-1:10 pm

Nonstop2h 25m

$187

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Wed 1/28

7:00 am-8:49 am

Nonstop2h 49m

Denver Intl

Sun 2/1

6:00 am-9:44 am

Nonstop2h 44m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Chicago to Colorado?

Currently, March is the cheapest month in which you can book a flight from Chicago to Colorado (average of $52). Flying from Chicago to Colorado in July is currently the most expensive (average of $115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to CO?

Find hourly flight availability from Chicago to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

It’s typically best to fly out from Chicago to Colorado in the afternoon. Doing so could potentially save you 10% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Colorado flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago to Colorado?

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated December 16, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Chicago to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,094 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,047 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Overall

7.9

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Chicago to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Colorado?

    A quick flight from Chicago to Colorado can take about 2h 45m. Frontier provides one of the quickest options available for as low as $173. Airlines will cover a distance of 893 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago to Colorado one-way?

    $38 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $71 and $76, respectively.

  • What are the most popular routes from Chicago to Colorado?

    The most popular flight routes from Chicago to Colorado are Chicago O'Hare Intl - Denver Intl, Chicago Midway - Denver Intl and Chicago O'Hare Intl - Vail Eagle County.

  • What are the most reliable airlines from Chicago to Colorado?

    Before booking your flight to Colorado from Chicago, check out the most reliable airlines to get you to your destination on time: Qatar Airways (84%), American Airlines (79%), Iberia( 78%).

  • What are the cheapest flights from Chicago to Colorado?

    Looking for the cheapest flight from Chicago to Colorado? While on average our users pay $748, our data indicates the cheapest price to be $63. The most popular route (Chicago O'Hare Intl - Denver Intl), is priced around $122.

  • Can I find deals for flights from Chicago to Colorado that include hotel bookings?

    Yes. In addition to deals on Chicago to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Colorado.

  • Can I find deals for business class flights from Chicago to Colorado?

    Yes. Cheapflights offers flight deals from Chicago to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago to Colorado?

    Currently, March is the cheapest month in which you can book a flight from Chicago to Colorado (average of $52). Flying from Chicago to Colorado in July is currently the most expensive (average of $115). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Chicago to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Chicago to Colorado

Discover the top 4 airlines that operate flights from Chicago to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$161FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$153Average$386FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$155Average$452FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$303FlexibilityNo cancel feeOn-time63%

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