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$64+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
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 septembre 15, 2025.

Round-trip from

$98
(CheapOair)

One-way from

$64
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$181

Good round-trip deal

$151 or less

Good one-way deal

$107 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, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septembre 15, 2025.

This CheapOair deal was found by Cheapflights users on 9/13. 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.
sam. 10/48:25 amORD - DEN
Nonstop2h 51mFrontier
mar. 10/78:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/13$98
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
lun. 12/87:39 pmORD - DEN
Nonstop2h 59mFrontier
sam. 12/132:59 pmDEN - ORD
Nonstop2h 35mFrontier
Deal found 9/13$102
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
ven. 11/712:30 pmMDW - DEN
Nonstop2h 46mFrontier
ven. 11/148:05 amDEN - MDW
Nonstop2h 25mFrontier
Deal found 9/15$103
This Frontier deal was found by Cheapflights users on 9/14. 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.
ven. 10/2412:11 pmMDW - DEN
Nonstop2h 46mFrontier
sam. 10/2512:25 pmDEN - MDW
1 stop9h 22mFrontier
Deal found 9/14$104
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
jeu. 10/25:35 amORD - DEN
Nonstop2h 45mFrontier
sam. 10/118:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/13$105
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
ven. 10/316:00 amORD - DEN
Nonstop2h 41mFrontier
dim. 11/28:41 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/13$106
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
ven. 10/246:50 amORD - DEN
Nonstop2h 41mFrontier
dim. 10/266:00 amDEN - ORD
Nonstop2h 36mFrontier
Deal found 9/13$107
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
ven. 10/2410:51 amORD - DEN
Nonstop2h 47mFrontier
sam. 11/18:41 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/14$108
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
mer. 10/17:20 amORD - DEN
Nonstop2h 53mFrontier
mer. 10/88:22 pmDEN - ORD
Nonstop2h 31mFrontier
Deal found 9/14$109
This CheapOair deal was found by Cheapflights users on 9/14. 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.
ven. 10/106:24 pmMDW - DEN
Nonstop2h 44mFrontier
lun. 10/136:05 amDEN - MDW
Nonstop2h 26mFrontier
Deal found 9/14$109
This Frontier deal was found by Cheapflights users on 9/14. 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.
mar. 9/307:20 amORD - DEN
Nonstop2h 53mFrontier
dim. 10/56:00 amDEN - ORD
Nonstop2h 37mFrontier
Deal found 9/14$110
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/612:30 pmMDW - DEN
Nonstop2h 46mFrontier
dim. 11/98:05 amDEN - MDW
Nonstop2h 25mFrontier
Deal found 9/15$110

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 septembre 15, 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

sam. 12/13

5:15 pm-6:55 pm

Nonstop2h 40m

Denver Intl

lun. 12/15

2:35 pm-7:20 pm

1 stop3h 45m

$152

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

sam. 10/11

5:15 am-6:55 am

Nonstop2h 40m

Denver Intl

sam. 10/18

5:40 am-9:00 am

Nonstop2h 20m

$157

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

mar. 10/28

8:40 pm-10:20 pm

Nonstop2h 40m

Denver Intl

lun. 11/3

8:00 am-1:55 pm

1 stop4h 55m

$167

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

jeu. 11/20

9:50 am-2:25 pm

1 stop5h 35m

Denver Intl

sam. 11/22

8:25 pm-11:45 pm

Nonstop2h 20m

$167

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

sam. 2/28

5:15 pm-7:05 pm

Nonstop2h 50m

Denver Intl

mar. 3/3

6:45 am-1:00 pm

1 stop5h 15m

$167

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

ven. 12/12

9:40 pm-11:15 pm

Nonstop2h 35m

Denver Intl

lun. 12/15

10:15 am-5:00 pm

1 stop5h 45m

$171

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

mer. 10/22

6:25 am-11:55 am

1 stop6h 30m

Colorado Springs

mer. 10/29

5:30 pm-10:40 pm

1 stop4h 10m

$177

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

sam. 1/31

9:05 am-2:40 pm

1 stop6h 35m

Colorado Springs

mar. 2/3

1:45 pm-8:40 pm

1 stop5h 55m

$177

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

sam. 1/24

6:15 pm-8:13 pm

Nonstop2h 58m

Denver Intl

ven. 1/30

5:42 pm-9:15 pm

Nonstop2h 33m

$179

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

mer. 10/22

2:50 pm-9:10 pm

1 stop7h 20m

Colorado Springs

mer. 10/29

11:35 am-10:20 pm

2 stops9h 45m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

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 septembre 15, 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 septembre 15, 2025.

The most flights from CHI to USCO are scheduled on a Monday (75 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (52 on average).

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 septembre 15, 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
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 40m. Southwest provides one of the quickest options available for as low as $152. 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?

    $74 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $79 and $135, 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 (77%), United Airlines (72%), Southwest( 66%).

  • What are the cheapest flights from Chicago to Colorado?

    Looking for the cheapest flight from Chicago to Colorado? While on average our users pay $497, our data indicates the cheapest price to be $64. The most popular route (Chicago O'Hare Intl - Denver Intl), is priced around $77.

  • 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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$156FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$152Average$419FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$333FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$161Average$507FlexibilityNo cancel feeOn-time69%

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