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Colorado Springs

$96+ Cheap flights from Illinois to Colorado Springs (COS)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Illinois to Colorado Springs

Keep the following information in mind while searching for Illinois to Colorado Springs flight deals. Data was last updated August 18, 2025.

Round-trip from

$237
(American Airlines)

One-way from

$96
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$199

Good round-trip deal

$223 or less

Good one-way deal

$165 or less
From Illinois to Colorado Springs
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One-way flight from Illinois to Colorado Springs
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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 August 2025
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Price to beat on a round-trip flight from Illinois to Colorado Springs.
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Price to beat on a one-way flight from Illinois to Colorado Springs.
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Find flight deals from Illinois to Colorado Springs

Cheapest flights from Illinois to Colorado Springs
Explore the most affordable flight options available from Illinois to Colorado Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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 9/169:56 amORD - COS
Nonstop2h 55mAmerican Airlines
Tue 9/2312:21 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 8/17$237
This Southwest deal was found by Cheapflights users on 8/17. 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.
Tue 9/92:45 pmMDW - COS
Nonstop2h 25mSouthwest
Tue 9/1611:55 amCOS - MDW
Nonstop2h 20mSouthwest
Deal found 8/17$237
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/139:56 amORD - COS
Nonstop2h 55mAmerican Airlines
Tue 9/1612:21 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 8/17$240
This Southwest deal was found by Cheapflights users on 8/17. 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.
Tue 9/162:45 pmMDW - COS
Nonstop2h 25mSouthwest
Tue 9/2311:55 amCOS - MDW
Nonstop2h 20mSouthwest
Deal found 8/17$240
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Thu 10/309:40 amORD - COS
Nonstop2h 54mAmerican Airlines
Mon 11/312:36 pmCOS - ORD
Nonstop2h 46mAmerican Airlines
Deal found 8/17$243
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Wed 9/1010:03 amORD - COS
1 stop7h 15mAmerican Airlines
Wed 9/1712:21 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 8/16$247
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Mon 10/65:26 pmMLI - COS
1 stop7h 18mAmerican Airlines
Sat 10/115:01 pmCOS - MLI
1 stop5h 34mAmerican Airlines
Deal found 8/15$249
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/157:50 pmORD - COS
Nonstop3h 04mUnited Airlines
Tue 9/2312:50 pmCOS - ORD
1 stop6h 07mUnited Airlines
Deal found 8/17$250
This Southwest deal was found by Cheapflights users on 8/18. 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 9/205:35 pmMDW - COS
Nonstop2h 30mSouthwest
Mon 9/225:30 amCOS - MDW
1 stop6h 30mSouthwest
Deal found 8/18$253
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Thu 9/45:11 pmPIA - COS
1 stop5h 57mAmerican Airlines
Mon 9/85:16 pmCOS - PIA
1 stop5h 07mAmerican Airlines
Deal found 8/15$254
This Southwest deal was found by Cheapflights users on 8/17. 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.
Tue 9/91:30 pmORD - COS
1 stop6h 45mSouthwest
Tue 9/166:00 amCOS - ORD
1 stop7h 25mSouthwest
Deal found 8/17$257
This Delta deal was found by Cheapflights users on 8/17. 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.
Tue 9/1612:43 pmMDW - COS
1 stop8h 56mDelta
Wed 9/241:11 pmCOS - MDW
1 stop7h 25mDelta
Deal found 8/17$257

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Colorado Springs 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 August 18, 2025.
Use the filters below to find and compare flights from Illinois to Colorado Springs that are best for you.

Fly from

Illinois

Fly to

Colorado Springs

Route

Depart

Return

Price

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Tue 9/16

9:56 am-11:51 am

Nonstop2h 55m

Colorado Springs

Tue 9/23

12:21 pm-4:06 pm

Nonstop2h 45m

$237

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Tue 9/9

2:45 pm-4:10 pm

Nonstop2h 25m

Colorado Springs

Tue 9/16

11:55 am-3:15 pm

Nonstop2h 20m

$237

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Tue 9/23

2:45 pm-4:10 pm

Nonstop2h 25m

Colorado Springs

Tue 9/30

11:55 am-3:15 pm

Nonstop2h 20m

$237

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Mon 9/15

9:07 am-10:56 am

Nonstop2h 49m

Colorado Springs

Tue 9/23

12:02 pm-3:43 pm

Nonstop2h 41m

$240

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 9/13

9:56 am-11:51 am

Nonstop2h 55m

Colorado Springs

Tue 9/16

12:21 pm-4:06 pm

Nonstop2h 45m

$240

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Tue 9/16

2:45 pm-4:10 pm

Nonstop2h 25m

Colorado Springs

Tue 9/23

11:55 am-3:15 pm

Nonstop2h 20m

$240

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 10/30

9:40 am-11:34 am

Nonstop2h 54m

Colorado Springs

Mon 11/3

12:36 pm-4:22 pm

Nonstop2h 46m

$243

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 9/10

10:03 am-4:18 pm

1 stop7h 15m

Colorado Springs

Wed 9/17

12:21 pm-4:06 pm

Nonstop2h 45m

$247

MolineColorado Springs

MLI - COS

MLICOS

Moline Quad-City

Mon 10/6

5:26 pm-11:44 pm

1 stop7h 18m

Colorado Springs

Sat 10/11

5:01 pm-11:35 pm

1 stop5h 34m

$249

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 9/20

9:07 am-10:56 am

Nonstop2h 49m

Colorado Springs

Tue 9/23

6:25 pm-11:59 pm

1 stop4h 34m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 51 results
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Best time to book a flight from Illinois to Colorado Springs

Have a flexible travel schedule? Discover the best time to fly to Colorado Springs from Illinois 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 Illinois to Colorado Springs

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $316). Flying from Illinois to Colorado Springs in March is currently the most expensive (average of $412). 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 IL to COS?

Find hourly flight availability from Illinois to Colorado Springs. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Colorado Springs as you normally would.

Weekly flight availability from Illinois to Colorado Springs

Explore weekly flight availability from Illinois to Colorado Springs. 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 August 18, 2025.

The most flights from USIL to COS are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

Related info for your journey

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

  • What airport do you fly into for flights to Colorado Springs from Illinois?

    If you book a flight to Colorado Springs from Illinois, you will be flying to Colorado Springs, which is the city’s only airport. Colorado Springs (COS) is located 6.7 mi from the center of Colorado Springs.

  • How long is the flight from Illinois to Colorado Springs?

    There are many flights that can get you from Illinois to Colorado Springs in 2h 25m. Fly via American Airlines, Southwest, or United Airlines to get the fastest option. Illinois and Colorado Springs are separated by a distance of 915 mi. Most flights are nonstop.

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

    One-way options have recently been found by users for as low as $119 on United Airlines. Other airlines that offer cheap prices include American Airlines from $119 and Delta from $205 one-way.

  • What are the most popular routes from Illinois to Colorado Springs?

    Most travelers choose Chicago O'Hare Intl - Colorado Springs, Chicago Midway - Colorado Springs or Lambert-St Louis - Colorado Springs when deciding on the best route from Illinois to Colorado Springs.

  • What are the most reliable airlines from Illinois to Colorado Springs?

    Before booking your flight to Colorado Springs from Illinois, check out the most reliable airlines to get you to your destination on time: United Airlines (70%), American Airlines (56%), SkyWest Airlines( 52%).

  • What are the cheapest flights from Illinois to Colorado Springs?

    While on average a flight from Illinois to Colorado Springs is generally $306, our data shows the cheapest flight currently is $114. When looking at the most popular route, (Chicago O'Hare Intl - Colorado Springs), you can expect to pay $240 for that flight.

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

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

  • How can I find direct flights from Illinois to Colorado Springs?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Colorado Springs 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 Illinois to Colorado Springs?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $316). Flying from Illinois to Colorado Springs in March is currently the most expensive (average of $412). 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

Traveling to a place near Colorado Springs?

Book flights to Colorado Springs if you plan to visit one of these locations
Cañon City

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Top 3 airlines flying from Illinois to Colorado Springs

Discover the top 3 airlines that operate flights from Illinois to Colorado Springs. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$417FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$465FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$255Average$346FlexibilityNo cancel feeOn-time63%

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