$136 Find Cheap Flights from Colorado Springs to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Colorado Springs to Illinois departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colorado Springs to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colorado Springs to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Colorado Springs to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$279
Moline
Moline1 stop$324
Peoria
Peoria1 stop$329
Bloomington
Bloomington1 stop$374
Springfield
Springfield2 stops$497
St. Louis
St. Louis1 stop$221
Chicago
Chicagononstop$279
Moline
Moline1 stop$324
Peoria
Peoria1 stop$329
Bloomington
Bloomington1 stop$374
Springfield
Springfield2 stops$497
St. Louis
St. Louis1 stop$221

Book Cheap Colorado Springs to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado Springs to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado Springs to Illinois

mar., ago. 25 - mié., ago. 26
Delta Logo
5:55 pm - 12:36 am
COS
-
STL
5h 41m
1 stop
Delta Logo
6:30 am - 10:02 am
STL
-
COS
4h 32m
1 stop
$221Delta
mié., may. 27 - mar., jun. 2
Delta Logo
11:55 am - 7:03 pm
COS
-
STL
6h 08m
1 stop
Delta Logo
3:11 pm - 10:22 pm
STL
-
COS
8h 11m
2 stops
$226Delta
mié., may. 27 - mar., jun. 2
Delta Logo
11:55 am - 7:03 pm
COS
-
STL
6h 08m
1 stop
Delta Logo
6:00 am - 12:48 pm
STL
-
COS
7h 48m
1 stop
$250Delta
mar., may. 26 - mar., jun. 2
American Airlines Logo
3:45 pm - 11:59 pm
COS
-
STL
7h 14m
1 stop
American Airlines Logo
9:41 am - 4:34 pm
STL
-
COS
7h 53m
1 stop
$275American Airlines
mar., ago. 25 - sáb., ago. 29
Delta Logo
5:55 pm - 12:36 am
COS
-
STL
5h 41m
1 stop
Delta Logo
6:00 am - 12:48 pm
STL
-
COS
7h 48m
1 stop
$277Delta
mar., ago. 25 - sáb., ago. 29
American Airlines Logo
12:07 pm - 3:50 pm
COS
-
ORD
2h 43mnonstop
American Airlines Logo
9:45 am - 11:36 am
ORD
-
COS
2h 51mnonstop
$279American Airlines
mié., may. 20 - mié., may. 27
United Airlines Logo
5:12 pm - 11:56 pm
COS
-
ORD
5h 44m
1 stop
United Airlines Logo
9:06 am - 11:10 am
ORD
-
COS
3h 04mnonstop
$281United Airlines
mar., jun. 2 - mié., jun. 3
Southwest Logo
6:50 pm - 5:25 am
COS
-
MDW
9h 35m
1 stop
Southwest Logo
5:30 pm - 9:20 pm
MDW
-
COS
4h 50m
1 stop
$291Southwest
sáb., may. 30 - mar., jun. 2
United Airlines Logo
12:16 pm - 4:02 pm
COS
-
ORD
2h 46mnonstop
United Airlines Logo
9:06 am - 11:10 am
ORD
-
COS
3h 04mnonstop
$295United Airlines
mar., jun. 23 - jue., jun. 25
Southwest Logo
6:10 pm - 11:40 pm
COS
-
STL
4h 30m
1 stop
Southwest Logo
8:10 am - 4:00 pm
STL
-
COS
8h 50m
2 stops
$309Southwest
Booking Insights

KAYAK's insights & trends for Colorado Springs to Illinois flights

Get data-powered insights and trends into flights from Colorado Springs to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Colorado Springs to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Colorado Springs to Illinois departing in August.

What is the cheapest Colorado Springs to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Colorado Springs found in the last 72 hours was to Chicago, at $300 round-trip. The most popular route is from Colorado Springs (COS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $300.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Colorado Springs to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $435 on average. Morning departures are around 7% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $491.

Can I save money by flying with a layover from Colorado Springs to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $387 on average.

What is the cheapest month to fly from Colorado Springs to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Colorado Springs to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Colorado Springs to Illinois is October, when tickets cost $149 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $283 and $249 respectively.

What’s the cheapest day of the week to fly from Colorado Springs to Illinois?

The average price of all round-trip flights from Colorado Springs to Illinois clicked on KAYAK for each day over the last 12 months.

For Colorado Springs to Illinois, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Illinois back to Colorado Springs, the best deals are generally found on Saturday, with Sunday being the most expensive.

Good to know

Low seasonDecember
Cheapest flight$136
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Colorado Springs to Chicago Midway Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Colorado Springs to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado Springs to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado Springs to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado Springs to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado Springs to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Colorado Springs to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado Springs to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Colorado Springs to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Colorado Springs to the following destinations at these prices or less: Chicago $261 one-way - $361 round-trip; Chicago $215 one-way - $419 round-trip

Reviews of the top 3 airlines serving from Colorado Springs to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Colorado Springs to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Colorado Springs to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4314 reviews
7.5Entertainment
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

WiFi was not working and didn’t have a beverage service

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

Everything you need to know for your flight from Colorado Springs to Illinois

Information on your arrival and departure airports