ORD

$59 Find Cheap Flights from Illinois to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 4/15. 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

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Everything you should know

Cheapest round-trip
$85
Contour
Thu 2/19Mon 2/23
BRL - ORD • Non-stop
Cheapest one-way
$43
Contour
Wed 4/15
BRL - ORD • Non-stop
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We hope you love your trip to Chicago!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Chicago

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Chicago 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 Illinois to Chicago

Thu, Feb 19 - Mon, Feb 23
Contour Logo
9:00 am - 10:10 am
BRL
-
ORD
1h 10mnonstop
Contour Logo
10:50 am - 12:10 pm
ORD
-
BRL
1h 20mnonstop
$85Contour
Fri, Feb 20 - Tue, Feb 24
Contour Logo
9:00 am - 10:10 am
BRL
-
ORD
1h 10mnonstop
Contour Logo
10:50 am - 12:10 pm
ORD
-
BRL
1h 20mnonstop
$86Contour
Wed, May 6 - Wed, May 6
American Airlines Logo
5:21 pm - 6:55 pm
STL
-
ORD
1h 34mnonstop
American Airlines Logo
10:30 pm - 11:46 pm
ORD
-
STL
1h 16mnonstop
$112American Airlines
Tue, Mar 3 - Tue, Mar 10
Frontier Logo
3:49 pm - 3:52 pm
STL
-
ORD
24h 03m
1 stop
Frontier Logo
7:41 pm - 10:37 am
ORD
-
STL
14h 56m
1 stop
$118Frontier
Tue, Mar 3 - Tue, Mar 10
Frontier Logo
3:49 pm - 3:52 pm
STL
-
ORD
24h 03m
1 stop
Frontier Logo
9:28 am - 9:49 am
ORD
-
STL
24h 21m
2 stops
$139Frontier
Wed, May 6 - Wed, May 13
Southwest Logo
5:45 am - 11:10 am
STL
-
ORD
5h 25m
1 stop
Southwest Logo
2:40 pm - 10:00 pm
ORD
-
STL
7h 20m
1 stop
$142Southwest
Wed, Apr 22 - Sat, Apr 25
American Airlines Logo
12:25 pm - 1:49 pm
STL
-
ORD
1h 24mnonstop
American Airlines Logo
6:59 am - 8:24 am
ORD
-
STL
1h 25mnonstop
$144American Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
9:50 am - 11:00 am
DEC
-
ORD
1h 10mnonstop
United Airlines Logo
7:45 am - 8:52 am
ORD
-
DEC
1h 07mnonstop
$149United Airlines
Sat, Mar 28 - Sun, Apr 5
United Airlines Logo
7:15 pm - 8:25 pm
DEC
-
ORD
1h 10mnonstop
United Airlines Logo
4:49 pm - 5:57 pm
ORD
-
DEC
1h 08mnonstop
$159United Airlines
Wed, Apr 22 - Sat, Apr 25
Southwest Logo
5:45 am - 11:10 am
STL
-
ORD
5h 25m
1 stop
Southwest Logo
1:55 pm - 7:10 pm
ORD
-
STL
5h 15m
1 stop
$164Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$43
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Burlington to Chicago

FAQs for booking Illinois to Chicago O'Hare Airport flights

  • How does KAYAK find such low prices on flights from Illinois to Chicago O'Hare Airport?

    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 Illinois to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from 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 Illinois to Chicago O'Hare Airport?

    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 to Chicago O'Hare Airport with an airline and back to Illinois with another airline.

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

    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 to Chicago O'Hare Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Illinois to Chicago

 
Need help choosing which airline to fly with from Illinois to Chicago? 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.
7.6
ContourOverall score based on 42 reviews
7.6Boarding
6.8Food
7.9Crew
7.3Comfort
6.1Entertainment
Airline reviews

Short flight so no entertainment and none expected or appropriate. Everyone I dealt with was professional and helpful. A good experience.

10.0 ExcellentAnonymous, Nov 2025
TSM - DEN
Read more Contour reviews

Short flight so no entertainment and none expected or appropriate. Everyone I dealt with was professional and helpful. A good experience.

Love it. No Frills but better than Spirit No Frills. It's like a simple luxury private plane especially if you've got five or six people on it because then you probably got your own section of the plane.

All the staff were amazing! The flight was quick, everything went smoothly, I have nothing but good things to say about this flight. Thank you Contour!

It was easy, efficient from start to finish. The flight attendant was amazing. Smooth ride. It was just perfect.

We had a great experience on both of our flights! Crew was great…..the ride was smooth…and checking in was easy. We will definitely fly with them again.

This was my first time flying with Contour and the Greenbrier Valley Airport. It both were excellent and the price couldn’t be beat!

Not on time. Taxied around the airport for 30 MINUTES! The pilot never said a word. Ai

Great flight, professional crew, convenient and interesting nonstop routes. Had trouble with getting precheck listed on boarding pass, but found that customer service was remarkably responsive via email — unheard of with other carriers. A great experience overalll.

I felt like a sardine in my seat. We all did. The plane was so small that I hit my head on the roof when I stood up from my seat. The service was good and the crew were nice.

My luggage is missing and contour is doing a terrible service helping finding it. Unbelievable and the worst experience ever. I would love get my money back.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

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

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

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.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Gurnee
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Everything you need to know for your flight to Chicago

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