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$63+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Chicago to Colorado

Keep the following information in mind while searching for Chicago to Colorado flight deals. Data was last updated April 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$99
(Frontier)

One-way from

$63
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$192

Good round-trip deal

$162 or less

Good one-way deal

$114 or less
Provider with most accurate pricing for Chicago (CHI)-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Denver Intl flights.
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From Chicago (CHI) to Colorado
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One-way flight from Chicago (CHI) to Colorado
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Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Colorado.
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Price to beat on a one-way flight from Chicago (CHI) to Colorado.
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Find 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 April 17, 2025.

This Frontier deal was found by Cheapflights users on 4/16. 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.
Mon 5/266:00 amORD - DEN
Nonstop3h 02mFrontier
Fri 6/68:22 pmDEN - ORD
Nonstop2h 37mFrontier
Deal found 4/16$99
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 5/249:40 pmORD - DEN
Nonstop2h 50mUnited Airlines
Tue 5/278:50 pmDEN - ORD
Nonstop2h 35mUnited Airlines
Deal found 4/16$151
This Southwest deal was found by Cheapflights users on 4/17. 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.
Sat 5/248:35 pmMDW - DEN
Nonstop2h 45mSouthwest
Tue 5/275:55 amDEN - MDW
Nonstop2h 25mSouthwest
Deal found 4/17$151
This Frontier deal was found by Cheapflights users on 4/17. 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.
Sat 7/122:44 pmMDW - DEN
Nonstop2h 49mFrontier
Thu 8/145:26 pmDEN - MDW
Nonstop2h 28mFrontier
Deal found 4/17$159
This Southwest deal was found by Cheapflights users on 4/16. 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.
Sat 5/245:25 pmORD - DEN
Nonstop2h 50mSouthwest
Sun 5/257:00 amDEN - ORD
1 stop7h 00mSouthwest
Deal found 4/16$161
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/306:55 amORD - DEN
Nonstop2h 41mAmerican Airlines
Wed 6/412:19 pmDEN - ORD
Nonstop2h 32mAmerican Airlines
Deal found 4/16$165
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:33 pmORD - DEN
1 stop5h 25mDelta
Wed 6/49:15 amDEN - ORD
1 stop4h 13mDelta
Deal found 4/16$217
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/259:20 amMDW - DEN
1 stop5h 10mDelta
Thu 5/2910:31 amDEN - MDW
1 stop7h 14mDelta
Deal found 4/17$217
This CheapOair deal was found by Cheapflights users on 4/17. 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.
Fri 7/255:40 amORD - DEN
Nonstop2h 50mMultiple Airlines
Sun 7/277:00 amDEN - ORD
1 stop9h 15mMultiple Airlines
Deal found 4/17$222
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1010:51 amORD - ASE
Nonstop3h 13mAmerican Airlines
Tue 6/2412:08 pmASE - ORD
Nonstop2h 51mAmerican Airlines
Deal found 4/17$239
This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:45 amORD - COS
Nonstop2h 44mAmerican Airlines
Wed 8/2712:01 pmCOS - ORD
Nonstop2h 46mAmerican Airlines
Deal found 4/16$255
This Sun Country Air deal was found by Cheapflights users on 4/17. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:10 amORD - DEN
1 stop10h 57mSun Country Air
Sun 6/296:15 amDEN - ORD
1 stop12h 02mSun Country Air
Deal found 4/17$255

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 April 17, 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

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Mon 5/26

6:00 am-8:02 am

Nonstop3h 02m

Denver Intl

Fri 6/6

8:22 pm-11:59 pm

Nonstop2h 37m

$99

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 5/24

9:40 pm-11:30 pm

Nonstop2h 50m

Denver Intl

Tue 5/27

8:50 pm-12:25 am

Nonstop2h 35m

$151

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 5/24

8:35 pm-10:20 pm

Nonstop2h 45m

Denver Intl

Sun 5/25

6:55 am-10:15 am

Nonstop2h 20m

$151

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 7/12

2:44 pm-4:33 pm

Nonstop2h 49m

Denver Intl

Thu 8/14

5:26 pm-8:54 pm

Nonstop2h 28m

$159

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 5/24

5:25 pm-7:15 pm

Nonstop2h 50m

Denver Intl

Sun 5/25

7:00 am-3:00 pm

1 stop7h 00m

$161

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Fri 5/30

6:55 am-8:36 am

Nonstop2h 41m

Denver Intl

Wed 6/4

12:19 pm-3:51 pm

Nonstop2h 32m

$165

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 5/29

8:40 am-1:30 pm

1 stop5h 50m

Denver Intl

Sun 6/8

12:55 am-7:49 am

1 stop5h 54m

$217

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sun 5/25

9:20 am-1:30 pm

1 stop5h 10m

Denver Intl

Thu 5/29

10:31 am-6:45 pm

1 stop7h 14m

$217

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Mon 5/19

1:40 pm-4:40 pm

1 stop4h 00m

Denver Intl

Mon 5/19

8:11 pm-11:41 pm

Nonstop2h 30m

$231

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

Tue 6/10

10:51 am-1:04 pm

Nonstop3h 13m

Aspen Pitkin County

Tue 6/24

12:08 pm-3:59 pm

Nonstop2h 51m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results
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2
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6

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, October is the cheapest month in which you can book a flight from Chicago to Colorado (average of $197). Flying from Chicago to Colorado in March is currently the most expensive (average of $278). 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 April 17, 2025.

When flying from Chicago to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Chicago to Colorado

Explore weekly flight availability from Chicago to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 17, 2025.

The most flights from CHI to USCO are scheduled on a Thursday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in Colorado by month

Plan your trip to Colorado by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

Plan your trip to Colorado by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Colorado, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Chicago to Colorado. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

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

    $63 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Southwest, with prices starting from $76 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 - Colorado Springs.

  • 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: Frontier (94%), Copa Airlines (93%), Austrian Airlines( 90%).

  • What are the cheapest flights from Chicago to Colorado?

    Looking for the cheapest flight from Chicago to Colorado? While on average our users pay $569, our data indicates the cheapest price to be $76. The most popular route (Chicago O'Hare Intl - Denver Intl), is priced around $120.

  • 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, October is the cheapest month in which you can book a flight from Chicago to Colorado (average of $197). Flying from Chicago to Colorado in March is currently the most expensive (average of $278). 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$130FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$146Average$444FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$153Average$502FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$159Average$350FlexibilityNo cancel feeOn-time63%

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