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Colorado Springs

$98+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 2/219:41 am
ORD
-
COS
Nonstop3h 00m
American Airlines
Tue 2/2412:30 pm
COS
-
ORD
Nonstop2h 40m
American Airlines
Deal found 1/27$195
This American Airlines deal was found by Cheapflights users on 1/25. 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 5/29:50 am
ORD
-
COS
Nonstop3h 01m
American Airlines
Thu 5/712:21 pm
COS
-
ORD
Nonstop2h 45m
American Airlines
Deal found 1/25$212
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 3/55:25 am
ORD
-
COS
1 stop8h 00m
Delta
Tue 3/101:28 pm
COS
-
ORD
1 stop6h 42m
Delta
Deal found 1/25$215
This Southwest deal was found by Cheapflights users on 1/25. 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 2/265:15 am
MDW
-
COS
1 stop5h 15m
Southwest
Mon 3/25:40 pm
COS
-
MDW
1 stop10h 25m
Southwest
Deal found 1/25$220
This United Airlines deal was found by Cheapflights users on 1/25. 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 4/77:40 pm
ORD
-
COS
Nonstop3h 10m
United Airlines
Sat 4/113:26 pm
COS
-
ORD
1 stop4h 51m
United Airlines
Deal found 1/25$222
This Delta deal was found by Cheapflights users on 1/25. 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 2/185:25 am
ORD
-
COS
1 stop8h 00m
Delta
Fri 2/2012:00 pm
COS
-
ORD
1 stop8h 52m
Delta
Deal found 1/25$232
This American Airlines deal was found by Cheapflights users on 1/25. 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 4/79:50 am
ORD
-
COS
Nonstop3h 01m
American Airlines
Sat 4/1112:21 pm
COS
-
ORD
Nonstop2h 45m
American Airlines
Deal found 1/25$236
This American Airlines deal was found by Cheapflights users on 1/25. 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 3/199:59 am
ORD
-
COS
Nonstop3h 00m
American Airlines
Wed 3/2512:30 pm
COS
-
ORD
Nonstop2h 40m
American Airlines
Deal found 1/25$237
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 6/49:20 am
ORD
-
COS
Nonstop3h 04m
United Airlines
Mon 6/86:34 pm
COS
-
ORD
1 stop5h 10m
United Airlines
Deal found 1/26$239
This Southwest deal was found by Cheapflights users on 1/25. 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 4/255:10 am
MDW
-
COS
1 stop8h 25m
Southwest
Thu 4/307:20 pm
COS
-
MDW
1 stop8h 40m
Southwest
Deal found 1/25$243
This Southwest deal was found by Cheapflights users on 1/25. 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 4/72:55 pm
MDW
-
COS
1 stop6h 50m
Southwest
Sat 4/1111:25 am
COS
-
MDW
1 stop8h 40m
Southwest
Deal found 1/25$246
This Southwest deal was found by Cheapflights users on 1/25. 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 4/711:55 am
ORD
-
COS
2 stops9h 50m
Southwest
Sat 4/112:15 pm
COS
-
ORD
1 stop8h 10m
Southwest
Deal found 1/25$248

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$195
(American Airlines)

One-way from

$98
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$219

Good round-trip deal

$279 or less

Good one-way deal

$165 or less
Provider with most accurate pricing for Chicago (CHI)-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Denver Intl flights.
Search Deals
From Illinois to Colorado Springs
Search Deals
One-way flight from Illinois to Colorado Springs
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Colorado Springs.
Search Deals
Price to beat on a one-way flight from Illinois to Colorado Springs.
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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 January 27, 2026.
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

Sat 4/25

9:50 am-11:51 am

Nonstop3h 01m

Colorado Springs

Thu 4/30

12:21 pm-4:06 pm

Nonstop2h 45m

$212

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 4/22

9:50 am-11:51 am

Nonstop3h 01m

Colorado Springs

Wed 4/29

12:21 pm-4:06 pm

Nonstop2h 45m

$212

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Thu 2/26

5:15 am-9:30 am

1 stop5h 15m

Colorado Springs

Mon 3/2

5:40 pm-5:05 am

1 stop10h 25m

$220

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 2/18

5:25 am-12:25 pm

1 stop8h 00m

Colorado Springs

Fri 2/20

12:00 pm-9:52 pm

1 stop8h 52m

$232

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 3/19

9:59 am-11:59 am

Nonstop3h 00m

Colorado Springs

Wed 3/25

12:30 pm-4:10 pm

Nonstop2h 40m

$237

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Sat 4/25

5:10 am-12:35 pm

1 stop8h 25m

Colorado Springs

Thu 4/30

7:20 pm-5:00 am

1 stop8h 40m

$243

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Tue 4/7

2:55 pm-8:45 pm

1 stop6h 50m

Colorado Springs

Sat 4/11

11:25 am-9:05 pm

1 stop8h 40m

$246

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Thu 2/26

5:15 am-9:30 am

1 stop5h 15m

Colorado Springs

Sun 3/1

4:55 pm-12:55 am

1 stop7h 00m

$257

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 2/26

3:05 pm-11:00 pm

1 stop8h 55m

Colorado Springs

Sat 2/28

5:40 am-2:05 pm

1 stop7h 25m

$265

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 4/25

2:05 pm-8:45 pm

2 stops7h 40m

Colorado Springs

Thu 4/30

5:00 am-3:30 pm

1 stop9h 30m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 57 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, September is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $49). Flying from Illinois to Colorado Springs in July is currently the most expensive (average of $115). 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 January 27, 2026.

A simple way to save on the total cost of your ticket is to fly from Illinois to Colorado Springs at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the evening.

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 January 27, 2026.

The most flights from USIL to COS are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, 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 3h 01m. Fly via American Airlines, Southwest, or Delta to get the fastest option. Illinois and Colorado Springs are separated by a distance of 908 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $71 on American Airlines. Other airlines that offer cheap prices include Southwest from $90 and United Airlines from $113 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 (67%), SkyWest Airlines (66%), American Airlines( 59%).

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

    While on average a flight from Illinois to Colorado Springs is generally $373, our data shows the cheapest flight currently is $56. When looking at the most popular route, (Chicago O'Hare Intl - Colorado Springs), you can expect to pay $215 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, September is the cheapest month in which you can book a flight from Illinois to Colorado Springs (average of $49). Flying from Illinois to Colorado Springs in July is currently the most expensive (average of $115). 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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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$418FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$241Average$336FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$250Average$430FlexibilityNo cancel feeOn-time69%

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