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Colorado Springs

$91+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$217
(Delta)

One-way from

$91
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$197

Good round-trip deal

$321 or less

Good one-way deal

$155 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, 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 July 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 July 1, 2025.

This Delta deal was found by Cheapflights users on 6/29. 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.
Wed 8/63:41 pmSTL - COS
1 stop6h 42mDelta
Wed 8/205:55 pmCOS - STL
1 stop5h 43mDelta
Deal found 6/29$217
This American Airlines deal was found by Cheapflights users on 6/29. 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 8/75:24 pmMLI - COS
1 stop7h 20mAmerican Airlines
Mon 8/118:25 amCOS - MLI
1 stop7h 33mAmerican Airlines
Deal found 6/29$229
This Southwest deal was found by Cheapflights users on 6/30. 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.
Mon 9/295:45 amSTL - COS
1 stop5h 10mSouthwest
Thu 10/26:10 amCOS - STL
2 stops8h 50mSouthwest
Deal found 6/30$242
This American Airlines deal was found by Cheapflights users on 7/1. 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 10/287:00 amPIA - COS
1 stop5h 31mAmerican Airlines
Sat 11/15:06 pmCOS - PIA
1 stop5h 09mAmerican Airlines
Deal found 7/1$249
This Southwest deal was found by Cheapflights users on 6/30. 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.
Fri 10/38:00 amMDW - COS
2 stops10h 40mSouthwest
Mon 10/66:55 amCOS - MDW
2 stops8h 45mSouthwest
Deal found 6/30$264
This Southwest deal was found by Cheapflights users on 6/30. 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 8/91:50 pmORD - COS
1 stop7h 50mSouthwest
Mon 8/111:10 pmCOS - ORD
1 stop9h 30mSouthwest
Deal found 6/30$265
This Delta deal was found by Cheapflights users on 7/1. 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 9/271:05 pmORD - COS
1 stop8h 34mDelta
Tue 9/306:00 amCOS - ORD
1 stop7h 33mDelta
Deal found 7/1$268
This Delta deal was found by Cheapflights users on 7/1. 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.
Wed 8/206:04 amMDW - COS
1 stop7h 08mDelta
Mon 8/2511:11 amCOS - MDW
1 stop5h 26mDelta
Deal found 7/1$268
This American Airlines deal was found by Cheapflights users on 6/30. 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 7/303:52 pmORD - COS
1 stop7h 30mAmerican Airlines
Mon 8/412:04 pmCOS - ORD
Nonstop2h 46mAmerican Airlines
Deal found 6/30$269
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/187:23 amSTL - COS
1 stop5h 10mAmerican Airlines
Fri 9/2612:21 pmCOS - STL
1 stop7h 11mAmerican Airlines
Deal found 7/1$285
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Fri 8/299:07 amORD - COS
Nonstop2h 49mUnited Airlines
Mon 9/16:00 amCOS - ORD
Nonstop2h 52mUnited Airlines
Deal found 6/29$286
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/287:08 amORD - COS
2 stops10h 11mMultiple Airlines
Mon 8/45:09 pmCOS - ORD
2 stops11h 54mMultiple Airlines
Deal found 6/29$295

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 July 1, 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

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Wed 8/6

3:41 pm-9:23 pm

1 stop6h 42m

Colorado Springs

Wed 8/20

5:55 pm-12:38 am

1 stop5h 43m

$217

MolineColorado Springs

MLI - COS

MLICOS

Moline Quad-City

Thu 8/7

5:24 pm-11:44 pm

1 stop7h 20m

Colorado Springs

Mon 8/11

8:25 am-4:58 pm

1 stop7h 33m

$229

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Mon 9/29

5:45 am-9:55 am

1 stop5h 10m

Colorado Springs

Thu 10/2

6:10 am-4:00 pm

2 stops8h 50m

$242

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 8/9

1:50 pm-8:40 pm

1 stop7h 50m

Colorado Springs

Mon 8/11

1:10 pm-11:40 pm

1 stop9h 30m

$265

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 9/27

1:05 pm-8:39 pm

1 stop8h 34m

Colorado Springs

Tue 9/30

6:00 am-2:33 pm

1 stop7h 33m

$268

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Wed 8/20

6:04 am-12:12 pm

1 stop7h 08m

Colorado Springs

Mon 8/25

11:11 am-5:37 pm

1 stop5h 26m

$268

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 7/30

3:52 pm-10:22 pm

1 stop7h 30m

Colorado Springs

Mon 8/4

12:04 pm-3:50 pm

Nonstop2h 46m

$269

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Sat 8/9

5:35 pm-7:05 pm

Nonstop2h 30m

Colorado Springs

Mon 8/11

9:45 am-1:10 pm

Nonstop2h 25m

$275

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Thu 9/18

7:23 am-11:33 am

1 stop5h 10m

Colorado Springs

Fri 9/26

12:21 pm-8:32 pm

1 stop7h 11m

$285

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Fri 8/29

9:07 am-10:56 am

Nonstop2h 49m

Colorado Springs

Mon 9/1

6:00 am-9:52 am

Nonstop2h 52m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 34 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 July 1, 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 July 1, 2025.

The most flights from USIL to COS are scheduled on a Monday (6 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Colorado Springs

Get insights into the airlines that provide service to Colorado Springs. 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 Springs. Reviews last updated July 1, 2025.
Read through reviews of airlines operating flights from Illinois to Colorado Springs, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,273 reviews
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,973 reviews
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,858 reviews
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Allegiant Air
7.2
Good
710 reviews
Southwest
8.0
Very good
4,273 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Overall

8.0

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

  • 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 $91 on American Airlines. Other airlines that offer cheap prices include Southwest from $91 and United Airlines from $99 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 (84%), SkyWest Airlines (82%), American Airlines( 82%).

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

    While on average a flight from Illinois to Colorado Springs is generally $310, our data shows the cheapest flight currently is $71. When looking at the most popular route, (Chicago O'Hare Intl - Colorado Springs), you can expect to pay $181 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 Illinois?

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

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Alternative routes for Illinois to Colorado Springs

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$416FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$255Average$346FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$263Average$463FlexibilityNo cancel feeOn-time69%

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