$113 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 7/8. 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
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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
Chicago1 stop$267
Moline
Moline1 stop$309
Peoria
Peoria1 stop$418
Bloomington
Bloomington1 stop$324
Champaign
Champaign2 stops$476
Springfield
Springfield2 stops$649
St. Louis
St. Louis1 stop$225
Chicago
Chicago1 stop$267
Moline
Moline1 stop$309
Peoria
Peoria1 stop$418
Bloomington
Bloomington1 stop$324
Champaign
Champaign2 stops$476
Springfield
Springfield2 stops$649
St. Louis
St. Louis1 stop$225

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

Tue, Sep 15 - Tue, Sep 29
Southwest Logo
10:45 am - 7:55 pm
COS
-
STL
8h 10m
1 stop
Southwest Logo
10:45 am - 5:00 pm
STL
-
COS
7h 15m
1 stop
$225Southwest
Tue, Sep 15 - Tue, Sep 29
Southwest Logo
4:15 pm - 9:10 pm
COS
-
STL
3h 55m
1 stop
Southwest Logo
3:45 pm - 9:45 pm
STL
-
COS
7h 00m
2 stops
$230Southwest
Tue, Sep 15 - Tue, Sep 29
Southwest Logo
6:15 am - 3:05 pm
COS
-
STL
7h 50m
2 stops
Southwest Logo
3:45 pm - 9:45 pm
STL
-
COS
7h 00m
2 stops
$262Southwest
Tue, Aug 4 - Sat, Aug 8
United Airlines Logo
5:13 pm - 11:57 pm
COS
-
STL
5h 44m
1 stop
United Airlines Logo
5:10 am - 8:41 am
STL
-
COS
4h 31m
1 stop
$264United Airlines
Tue, Aug 25 - Sat, Aug 29
Delta Logo
11:27 am - 6:01 pm
COS
-
MDW
5h 34m
1 stop
Delta Logo
6:05 am - 12:15 pm
MDW
-
COS
7h 10m
1 stop
$267Delta
Tue, Aug 25 - Sat, Aug 29
Delta Logo
6:00 am - 2:09 pm
COS
-
ORD
7h 09m
1 stop
Delta Logo
5:30 am - 12:15 pm
ORD
-
COS
7h 45m
1 stop
$267Delta
Wed, Jul 15 - Wed, Jul 29
United Airlines Logo
12:11 pm - 3:56 pm
COS
-
ORD
2h 45mnonstop
United Airlines Logo
9:06 am - 11:09 am
ORD
-
COS
3h 03mnonstop
$271United Airlines
Tue, Jul 28 - Tue, Aug 4
American Airlines Logo
12:22 pm - 4:14 pm
COS
-
ORD
2h 52mnonstop
American Airlines Logo
10:00 am - 11:52 am
ORD
-
COS
2h 52mnonstop
$274American Airlines
Tue, Sep 29 - Tue, Oct 6
Southwest Logo
6:15 am - 12:00 pm
COS
-
MDW
4h 45m
1 stop
Southwest Logo
3:40 pm - 5:15 pm
MDW
-
COS
2h 35mnonstop
$277Southwest
Wed, Jul 22 - Tue, Aug 4
American Airlines Logo
5:15 pm - 12:50 am
COS
-
ORD
6h 35m
1 stop
American Airlines Logo
10:00 am - 11:52 am
ORD
-
COS
2h 52mnonstop
$281American Airlines
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 5 days was to Chicago, at $317 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 5 days was $341.

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 $444 on average. Morning departures are around 6% 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 $506.

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 $417 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, Saturday 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 Wednesday, with Sunday being the most expensive.

How far in advance should I book a flight from Colorado Springs to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from Colorado Springs to Illinois, you should book around 5 weeks before departure, which saves you about 58% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$113
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Colorado Springs to St. Louis

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 $223 one-way - $402 round-trip; Chicago $229 one-way - $380 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.
7.9
SouthwestOverall score based on 4237 reviews
8.6Crew
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

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.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

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.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight from LA to Chicago was smooth and service was very good overall.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

They lost my baggage and I am still struggling to the information and update

Requested early boarding to disinfect seat, tray table, etc. before general boarding. Instructed to board after wheelchair passengers. Waited on jet bridge behind 12 wheelchair passengers. Stopped immediately after entering plane to wait for gate agent in rear of plane cleaning a seat that was wet, got to my row and found both seats adjacent to mine already occupied, with the lack of room making it impossible for me to clean my own space and defeating the purpose of my boarding early. Cleaned the armrests and tray table as best I could.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

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.

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

Information on your arrival and departure airports