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Colorado Springs

$103+ 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$217
(Delta)

One-way from

$126
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$216

Good round-trip deal

$324 or less

Good one-way deal

$145 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. 1% 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 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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 8/53:41 pmSTL - COS
1 stop6h 42mDelta
Tue 8/125:55 pmCOS - STL
1 stop5h 43mDelta
Deal found 6/12$217
This Southwest deal was found by Cheapflights users on 6/10. 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 11/56:00 amSTL - COS
1 stop8h 50mSouthwest
Tue 11/1111:50 amCOS - STL
2 stops8h 10mSouthwest
Deal found 6/10$222
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/124:44 pmPIA - COS
1 stop6h 38mAmerican Airlines
Thu 7/174:55 pmCOS - PIA
1 stop5h 12mAmerican Airlines
Deal found 6/11$249
This Delta deal was found by Cheapflights users on 6/11. 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 8/511:01 amORD - COS
2 stops11h 22mDelta
Sat 8/96:00 amCOS - ORD
1 stop7h 53mDelta
Deal found 6/11$276
This Delta deal was found by Cheapflights users on 6/12. 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 8/94:22 pmMDW - COS
1 stop6h 01mDelta
Mon 8/1111:11 amCOS - MDW
1 stop20h 39mDelta
Deal found 6/12$278
This Southwest deal was found by Cheapflights users on 6/9. 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.
Thu 8/213:10 pmORD - COS
1 stop7h 35mSouthwest
Mon 8/2511:45 amCOS - ORD
2 stops10h 55mSouthwest
Deal found 6/9$280
This American Airlines deal was found by Cheapflights users on 6/10. 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 10/79:45 amORD - COS
Nonstop2h 44mAmerican Airlines
Sun 10/1212:01 pmCOS - ORD
Nonstop2h 46mAmerican Airlines
Deal found 6/10$281
This Southwest deal was found by Cheapflights users on 6/12. 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 7/87:55 amMDW - COS
Nonstop2h 35mSouthwest
Tue 7/222:55 pmCOS - MDW
Nonstop2h 20mSouthwest
Deal found 6/12$283
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Thu 7/103:18 pmORD - COS
2 stops26h 01mMultiple Airlines
Mon 7/145:09 pmCOS - ORD
2 stops11h 54mMultiple Airlines
Deal found 6/10$284
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/16:35 pmORD - COS
1 stop6h 17mUnited Airlines
Sat 8/912:05 pmCOS - ORD
Nonstop2h 40mUnited Airlines
Deal found 6/11$291
This United Airlines deal was found by Cheapflights users on 6/10. 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 10/313:30 pmPIA - COS
2 stops9h 29mUnited Airlines
Mon 11/33:35 pmCOS - PIA
1 stop4h 21mUnited Airlines
Deal found 6/10$309
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/15:45 amMLI - COS
1 stop7h 27mAmerican Airlines
Wed 7/94:55 pmCOS - MLI
1 stop5h 21mAmerican Airlines
Deal found 6/11$312

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 June 12, 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

Tue 8/5

3:41 pm-9:23 pm

1 stop6h 42m

Colorado Springs

Tue 8/12

5:55 pm-12:38 am

1 stop5h 43m

$217

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Wed 11/5

6:00 am-1:50 pm

1 stop8h 50m

Colorado Springs

Tue 11/11

11:50 am-9:00 pm

2 stops8h 10m

$222

PeoriaColorado Springs

PIA - COS

PIACOS

Greater Peoria

Sat 7/12

4:44 pm-10:22 pm

1 stop6h 38m

Colorado Springs

Thu 7/17

4:55 pm-11:07 pm

1 stop5h 12m

$249

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Tue 8/5

11:01 am-9:23 pm

2 stops11h 22m

Colorado Springs

Sat 8/9

6:00 am-2:53 pm

1 stop7h 53m

$276

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Sat 8/9

4:22 pm-9:23 pm

1 stop6h 01m

Colorado Springs

Mon 8/11

11:11 am-8:50 am

1 stop20h 39m

$278

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 8/21

3:10 pm-9:45 pm

1 stop7h 35m

Colorado Springs

Mon 8/25

11:45 am-11:40 pm

2 stops10h 55m

$280

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 7/9

9:15 am-11:08 am

Nonstop2h 53m

Colorado Springs

Wed 7/16

12:05 pm-3:45 pm

Nonstop2h 40m

$283

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Tue 7/8

7:55 am-9:30 am

Nonstop2h 35m

Colorado Springs

Tue 7/22

2:55 pm-6:15 pm

Nonstop2h 20m

$283

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 7/10

3:18 pm-4:19 pm

2 stops26h 01m

Colorado Springs

Mon 7/14

5:09 pm-6:03 am

2 stops11h 54m

$284

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 7/26

5:00 am-9:53 am

1 stop5h 53m

Colorado Springs

Tue 7/29

12:03 pm-3:49 pm

Nonstop2h 46m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 40 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 June is currently the most expensive (average of $413). 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 June 12, 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 June 12, 2025.

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

Rainfall in Colorado Springs by month

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

In terms of precipitation, rainfall in Colorado Springs ranges from 0.3 - 3.3 inches per month. August is typically the wettest month, when rainfall can reach 3.3 in. January is typically the driest time to visit Colorado Springs when rainfall is around 0.3 in.

Temperature in Colorado Springs by month

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

If weather is an important factor for your trip to Colorado Springs, 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 71.6 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 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 June 12, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from Illinois to Colorado Springs. 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
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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
7.3
Good
725 reviews
Southwest
8.0
Very good
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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
4,287 reviews

Boarding

8.2

Food

7.1

Crew

8.6

Comfort

8.0

Overall

8.0

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 $126 on United Airlines. Other airlines that offer cheap prices include Southwest from $126 and Delta from $136 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 (87%), SkyWest Airlines (86%), Emirates( 75%).

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

    While on average a flight from Illinois to Colorado Springs is generally $526, our data shows the cheapest flight currently is $155. When looking at the most popular route, (Chicago O'Hare Intl - Colorado Springs), you can expect to pay $271 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 June is currently the most expensive (average of $413). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$420FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$255Average$346FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$263Average$463FlexibilityNo cancel feeOn-time69%

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