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$79+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$139
(Cheapflightsfares)

One-way from

$79
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$218

Good round-trip deal

$179 or less

Good one-way deal

$98 or less
From Chicago (CHI) to Colorado
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One-way flight from Chicago (CHI) to Colorado
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 18, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:00 amORD - DEN
Nonstop2h 41mFrontier
Mon 9/298:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 6/17$139
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:29 pmMDW - DEN
Nonstop2h 48mFrontier
Mon 9/297:10 pmDEN - MDW
Nonstop2h 28mFrontier
Deal found 6/17$139
This Southwest deal was found by Cheapflights users on 6/16. 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.
Wed 8/137:00 amORD - DEN
Nonstop2h 40mSouthwest
Sat 8/169:35 amDEN - ORD
Nonstop2h 30mSouthwest
Deal found 6/16$157
This Southwest deal was found by Cheapflights users on 6/17. 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.
Wed 8/68:50 pmMDW - DEN
Nonstop2h 35mSouthwest
Wed 8/132:50 pmDEN - MDW
Nonstop2h 20mSouthwest
Deal found 6/17$158
This American Airlines deal was found by Cheapflights users on 6/16. 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 8/93:04 pmORD - DEN
Nonstop2h 38mAmerican Airlines
Mon 8/115:32 pmDEN - ORD
Nonstop2h 46mAmerican Airlines
Deal found 6/16$165
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/235:00 amORD - DEN
Nonstop2h 43mUnited Airlines
Sun 7/277:50 amDEN - ORD
Nonstop2h 35mUnited Airlines
Deal found 6/17$189
This Delta deal was found by Cheapflights users on 6/16. 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.
Tue 7/226:00 amORD - DEN
1 stop4h 56mDelta
Mon 7/2812:59 amDEN - ORD
1 stop8h 11mDelta
Deal found 6/16$217
This Delta deal was found by Cheapflights users on 6/16. 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.
Sat 8/21:46 pmMDW - DEN
1 stop7h 07mDelta
Wed 8/612:55 amDEN - MDW
1 stop6h 49mDelta
Deal found 6/16$217
This American Airlines deal was found by Cheapflights users on 6/16. 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 9/121:20 pmORD - DRO
1 stop7h 24mAmerican Airlines
Tue 9/164:59 pmDRO - ORD
1 stop6h 00mAmerican Airlines
Deal found 6/16$238
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Tue 7/297:35 pmORD - ASE
Nonstop3h 09mUnited Airlines
Tue 8/56:15 pmASE - ORD
1 stop5h 15mUnited Airlines
Deal found 6/16$239
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/99:40 amORD - ASE
Nonstop3h 06mAmerican Airlines
Tue 8/194:53 pmASE - ORD
1 stop5h 50mAmerican Airlines
Deal found 6/15$241
This Booking.com deal was found by Cheapflights users on 6/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:10 amORD - DEN
1 stop10h 51mMultiple Airlines
Mon 6/308:21 pmDEN - ORD
Nonstop2h 38mMultiple Airlines
Deal found 6/16$246

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 June 18, 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

Thu 8/7

5:40 am-7:30 am

Nonstop2h 50m

Denver Intl

Mon 8/11

8:31 pm-12:10 am

Nonstop2h 39m

$139

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Thu 9/25

4:29 pm-6:17 pm

Nonstop2h 48m

Denver Intl

Mon 9/29

7:10 pm-10:38 pm

Nonstop2h 28m

$139

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Wed 8/13

7:00 am-8:40 am

Nonstop2h 40m

Denver Intl

Sat 8/16

9:35 am-1:05 pm

Nonstop2h 30m

$157

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Wed 8/6

8:50 pm-10:25 pm

Nonstop2h 35m

Denver Intl

Wed 8/13

2:50 pm-6:10 pm

Nonstop2h 20m

$158

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 8/28

5:00 am-6:41 am

Nonstop2h 41m

Denver Intl

Sat 8/30

6:00 pm-9:32 pm

Nonstop2h 32m

$163

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 8/9

3:04 pm-4:42 pm

Nonstop2h 38m

Denver Intl

Mon 8/11

5:32 pm-9:18 pm

Nonstop2h 46m

$165

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 7/22

6:00 am-9:56 am

1 stop4h 56m

Denver Intl

Mon 7/28

12:59 am-10:10 am

1 stop8h 11m

$217

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 8/2

1:46 pm-7:53 pm

1 stop7h 07m

Denver Intl

Fri 8/8

12:55 am-8:44 am

1 stop6h 49m

$217

ChicagoDurango

ORD - DRO

ORDDRO

Chicago O'Hare Intl

Fri 9/12

1:20 pm-7:44 pm

1 stop7h 24m

Durango La Plata County

Tue 9/16

4:59 pm-11:59 pm

1 stop6h 00m

$238

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

Tue 7/29

7:35 pm-9:44 pm

Nonstop3h 09m

Aspen Pitkin County

Tue 8/5

6:15 pm-12:30 am

1 stop5h 15m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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, 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 June 18, 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 June 18, 2025.

The most flights from CHI to USCO are scheduled on a Monday (74 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (39 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 June 18, 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
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
722 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    $79 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $79 and $80, 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: Envoy Air (100%), Copa Airlines (80%), Royal Jordanian( 75%).

  • What are the cheapest flights from Chicago to Colorado?

    Looking for the cheapest flight from Chicago to Colorado? While on average our users pay $709, our data indicates the cheapest price to be $83. The most popular route (Chicago O'Hare Intl - Denver Intl), is priced around $157.

  • 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$144FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$152Average$435FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$157Average$506FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$159Average$337FlexibilityNo cancel feeOn-time63%

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