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Colorado Springs

$110+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — COS
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/41:34 pmORD - COS
1 stop20h 26mMultiple Airlines
Thu 12/113:26 pmCOS - ORD
1 stop28h 29mMultiple Airlines
Deal found 11/5$179
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Fri 12/510:02 amORD - COS
Nonstop3h 02mAmerican Airlines
Mon 12/812:36 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 11/5$223
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/49:20 amORD - COS
Nonstop3h 06mUnited Airlines
Mon 12/81:35 pmCOS - ORD
1 stop6h 33mUnited Airlines
Deal found 11/5$233
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/610:06 amORD - COS
Nonstop3h 02mAmerican Airlines
Wed 12/1012:36 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 11/4$242
This Delta deal was found by Cheapflights users on 11/4. 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 12/36:45 amORD - COS
1 stop6h 51mDelta
Wed 12/101:42 pmCOS - ORD
1 stop8h 04mDelta
Deal found 11/4$243
This Delta deal was found by Cheapflights users on 11/4. 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 12/36:00 amMDW - COS
1 stop7h 36mDelta
Wed 12/108:10 amCOS - MDW
2 stops14h 37mDelta
Deal found 11/4$248
This Delta deal was found by Cheapflights users on 11/5. 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 12/68:50 amORD - COS
2 stops9h 29mDelta
Wed 12/108:10 amCOS - ORD
2 stops13h 36mDelta
Deal found 11/5$253
This Delta deal was found by Cheapflights users on 11/5. 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 12/69:59 amMDW - COS
2 stops13h 26mDelta
Wed 12/108:10 amCOS - MDW
2 stops14h 37mDelta
Deal found 11/5$253
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/49:55 amORD - COS
Nonstop3h 07mAmerican Airlines
Thu 12/1112:36 pmCOS - ORD
Nonstop2h 45mAmerican Airlines
Deal found 11/4$267
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/1112:04 pmSTL - COS
2 stops21h 56mMultiple Airlines
Sun 12/143:26 pmCOS - STL
1 stop18h 56mMultiple Airlines
Deal found 11/5$270
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 11/236:05 amMDW - COS
2 stops28h 05mMultiple Airlines
Thu 12/43:26 pmCOS - MDW
1 stop22h 26mMultiple Airlines
Deal found 11/5$276
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/228:52 amMLI - COS
1 stop5h 22mUnited Airlines
Thu 11/279:29 amCOS - MLI
1 stop4h 51mUnited Airlines
Deal found 11/3$279

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 November 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$110
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$163

Good round-trip deal

$215 or less

Good one-way deal

$125 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.
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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, 2% 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 November 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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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 November 6, 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

Thu 12/4

1:34 pm-9:00 am

1 stop20h 26m

Colorado Springs

Thu 12/11

3:26 pm-12:12 am

2 stops31h 46m

$214

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Sat 12/6

6:45 am-12:36 pm

1 stop6h 51m

Colorado Springs

Wed 12/10

1:42 pm-10:46 pm

1 stop8h 04m

$243

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Wed 12/3

6:45 am-12:36 pm

1 stop6h 51m

Colorado Springs

Wed 12/10

1:42 pm-10:46 pm

1 stop8h 04m

$243

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Thu 12/11

6:45 am-12:36 pm

1 stop6h 51m

Colorado Springs

Sun 12/14

1:42 pm-9:56 pm

1 stop7h 14m

$243

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Sat 12/6

6:00 am-12:36 pm

1 stop7h 36m

Colorado Springs

Wed 12/10

8:10 am-6:18 pm

2 stops9h 08m

$248

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Wed 12/3

6:00 am-12:36 pm

1 stop7h 36m

Colorado Springs

Wed 12/10

8:10 am-11:47 pm

2 stops14h 37m

$248

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Thu 12/11

12:04 pm-9:00 am

2 stops21h 56m

Colorado Springs

Sun 12/14

3:26 pm-11:22 am

1 stop18h 56m

$270

ChicagoColorado Springs

MDW - COS

MDWCOS

Chicago Midway

Sun 11/23

6:05 am-9:10 am

2 stops28h 05m

Colorado Springs

Thu 12/4

3:26 pm-2:52 pm

1 stop22h 26m

$276

MolineColorado Springs

MLI - COS

MLICOS

Moline Quad-City

Sat 11/22

8:52 am-1:14 pm

1 stop5h 22m

Colorado Springs

Thu 11/27

9:29 am-3:20 pm

1 stop4h 51m

$279

ChicagoColorado Springs

ORD - COS

ORDCOS

Chicago O'Hare Intl

Tue 2/3

7:05 am-12:23 pm

1 stop6h 18m

Colorado Springs

Sat 2/7

12:00 pm-9:52 pm

1 stop8h 52m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 60 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 $114). 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 November 6, 2025.

A simple way to save on the total cost of your ticket is to fly from Illinois to Colorado Springs in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% 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 November 6, 2025.

The most flights from USIL to COS are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 5h 22m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. Illinois and Colorado Springs are separated by a distance of 770 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 $112 on United Airlines. Other airlines that offer cheap prices include Delta from $122 and Southwest from $134 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 (82%), SkyWest Airlines (81%), Lufthansa( 72%).

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

    While on average a flight from Illinois to Colorado Springs is generally $259, our data shows the cheapest flight currently is $125. When looking at the most popular route, (Chicago O'Hare Intl - Colorado Springs), you can expect to pay $179 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 $114). 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

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$163Average$410FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$248Average$382FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$248Average$432FlexibilityNo cancel feeOn-time69%

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