$91 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 2/28. 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 23% 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
Chicago1 stop$209
Moline
Moline1 stop$354
Peoria
Peoria1 stop$309
Bloomington
Bloomington1 stop$474
Champaign
Champaign1 stop$536
St. Louis
St. Louis1 stop$293
Chicago
Chicago1 stop$209
Moline
Moline1 stop$354
Peoria
Peoria1 stop$309
Bloomington
Bloomington1 stop$474
Champaign
Champaign1 stop$536
St. Louis
St. Louis1 stop$293

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

Sat, Feb 28 - Sat, Mar 7
Southwest Logo
6:40 am - 2:45 pm
COS
-
ORD
7h 05m
1 stop
Southwest Logo
6:20 pm - 10:15 pm
ORD
-
COS
4h 55m
1 stop
$209Southwest
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
6:40 am - 2:45 pm
COS
-
ORD
7h 05m
1 stop
Southwest Logo
4:15 pm - 12:30 am
ORD
-
COS
9h 15m
2 stops
$215Southwest
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
12:21 pm - 4:06 pm
COS
-
ORD
2h 45mnonstop
American Airlines Logo
9:50 am - 11:51 am
ORD
-
COS
3h 01mnonstop
$222American Airlines
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
2:50 pm - 8:00 pm
COS
-
MDW
4h 10m
1 stop
Southwest Logo
6:20 pm - 10:15 pm
MDW
-
COS
4h 55m
1 stop
$223Southwest
Wed, Apr 8 - Fri, Apr 10
Delta Logo
12:10 pm - 9:34 pm
COS
-
ORD
8h 24m
1 stop
Delta Logo
5:30 am - 12:33 pm
ORD
-
COS
8h 03m
1 stop
$224Delta
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
1:40 pm - 11:45 pm
COS
-
MDW
9h 05m
1 stop
Southwest Logo
10:15 am - 7:15 pm
MDW
-
COS
10h 00m
2 stops
$228Southwest
Fri, Feb 20 - Mon, Feb 23
Delta Logo
7:55 am - 5:42 pm
COS
-
ORD
8h 47m
1 stop
Delta Logo
5:25 am - 12:25 pm
ORD
-
COS
8h 00m
1 stop
$232Delta
Thu, Feb 26 - Sun, Mar 1
American Airlines Logo
12:30 pm - 4:10 pm
COS
-
ORD
2h 40mnonstop
American Airlines Logo
10:00 am - 12:00 pm
ORD
-
COS
3h 00mnonstop
$237American Airlines
Wed, Jun 17 - Wed, Jul 1
United Airlines Logo
12:16 pm - 4:02 pm
COS
-
ORD
2h 46mnonstop
United Airlines Logo
9:20 am - 11:24 am
ORD
-
COS
3h 04mnonstop
$243United Airlines
Wed, Mar 11 - Thu, Mar 12
United Airlines Logo
5:15 pm - 11:34 pm
COS
-
STL
5h 19m
1 stop
United Airlines Logo
5:15 am - 8:49 am
STL
-
COS
4h 34m
1 stop
$309United 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 February.

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 $229 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 $229.

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.

No, with an average price for the route of $345, prices are generally cheapest when you fly direct.

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 February, when tickets cost $279 (return) on average. On the other hand, the most expensive months are November and April, when the average cost of round-trip tickets is $413 and $358 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, Wednesday 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 Friday being the most expensive.

Good to know

Low seasonDecember
Cheapest flight$91
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 21% increase in price.
Flight from Colorado Springs to Chicago O'Hare 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.

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

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $432 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $446.

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 $168 one-way - $324 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 4267 reviews
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

10.0 ExcellentJoseph, Jan 2026
BWI - RIC
Read more Southwest reviews

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

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

Everything went smoothly and we even arrived a little bit early.

The seats were comfortable, and the boarding process was pretty smooth.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

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

Information on your arrival and departure airports