ORD

$42 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 4/30. 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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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

Sun, May 24 - Tue, May 26
Contour Logo
9:10 am - 10:35 am
BRL
-
ORD
1h 25mnonstop
Contour Logo
6:45 pm - 8:05 pm
ORD
-
BRL
1h 20mnonstop
$78Contour
Thu, Apr 16 - Mon, Apr 20
Contour Logo
9:10 am - 10:35 am
BRL
-
ORD
1h 25mnonstop
Contour Logo
6:45 pm - 8:05 pm
ORD
-
BRL
1h 20mnonstop
$79Contour
Fri, Apr 17 - Tue, Apr 21
United Airlines Logo
7:37 pm - 8:50 pm
DEC
-
ORD
1h 13mnonstop
United Airlines Logo
4:49 pm - 5:58 pm
ORD
-
DEC
1h 09mnonstop
$149United Airlines
Sat, Apr 18 - Fri, May 15
United Airlines Logo
7:37 pm - 8:50 pm
DEC
-
ORD
1h 13mnonstop
United Airlines Logo
7:45 am - 8:58 am
ORD
-
DEC
1h 13mnonstop
$159United Airlines
Sat, May 2 - Sat, May 9
Frontier Logo
8:17 pm - 9:45 am
STL
-
ORD
13h 28m
1 stop
Frontier Logo
5:30 pm - 12:21 am
ORD
-
STL
6h 51m
1 stop
$171Frontier
Thu, May 14 - Tue, May 19
Multiple Airlines Logo
6:55 pm - 11:59 pm
STL
-
ORD
29h 04m
2 stops
Multiple Airlines Logo
6:55 am - 8:55 am
ORD
-
STL
26h 00m
1 stop
$172Multiple Airlines
Wed, Apr 29 - Thu, Apr 30
Multiple Airlines Logo
8:23 pm - 10:23 am
STL
-
ORD
14h 00m
1 stop
Multiple Airlines Logo
4:28 pm - 6:50 am
ORD
-
STL
14h 22m
1 stop
$174Multiple Airlines
Wed, Apr 22 - Tue, Apr 28
Frontier Logo
8:23 pm - 9:17 pm
STL
-
ORD
24h 54m
2 stops
Frontier Logo
6:08 pm - 6:50 am
ORD
-
STL
12h 42m
1 stop
$175Frontier
Fri, Apr 24 - Sun, Apr 26
American Airlines Logo
6:58 pm - 8:18 pm
CMI
-
ORD
1h 20mnonstop
American Airlines Logo
1:04 pm - 2:08 pm
ORD
-
CMI
1h 04mnonstop
$228American Airlines
Sun, May 3 - Sun, May 10
American Airlines Logo
2:38 pm - 3:53 pm
CMI
-
ORD
1h 15mnonstop
American Airlines Logo
8:27 pm - 9:35 pm
ORD
-
CMI
1h 08mnonstop
$229American Airlines
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Good to know

Low seasonJanuary
Cheapest flight$42
Best time to beat the crowds but there is an average 2% 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
6.8Food
7.6Boarding
7.3Comfort
7.9Crew
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.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

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.

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.

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Gurnee
South Haven
Merrillville
Oak Brook
Saint Joseph
Tinley Park
Elk Grove Village
Hammond
Des Plaines
Hoffman Estates
Willowbrook
Portage
South Holland
Delavan
Northbrook
Lansing
Lisle
Pleasant Prairie
Elmhurst
Valparaiso

Everything you need to know for your flight to Chicago

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