ORD

$47 Find Cheap Flights from Illinois to Chicago O'Hare Airport - Compare and Save

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 7/27. 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

Thu, Jul 2 - Mon, Jul 6
Contour Logo
3:45 pm - 5:10 pm
BRL
-
ORD
1h 25mnonstop
Contour Logo
12:15 pm - 1:35 pm
ORD
-
BRL
1h 20mnonstop
$98Contour
Thu, Jul 2 - Sun, Jul 5
Contour Logo
3:45 pm - 5:10 pm
BRL
-
ORD
1h 25mnonstop
Contour Logo
5:50 pm - 7:10 pm
ORD
-
BRL
1h 20mnonstop
$99Contour
Fri, Jul 10 - Fri, Jul 17
Contour Logo
9:55 am - 11:30 am
UIN
-
ORD
1h 35mnonstop
Contour Logo
12:20 pm - 1:40 pm
ORD
-
UIN
1h 20mnonstop
$100Contour
Sun, Jul 12 - Sun, Jul 19
United Airlines Logo
9:37 am - 10:45 am
DEC
-
ORD
1h 08mnonstop
United Airlines Logo
7:45 am - 8:57 am
ORD
-
DEC
1h 12mnonstop
$149United Airlines
Fri, Jul 24 - Sun, Jul 26
United Airlines Logo
6:45 pm - 7:53 pm
DEC
-
ORD
1h 08mnonstop
United Airlines Logo
4:45 pm - 5:56 pm
ORD
-
DEC
1h 11mnonstop
$159United Airlines
Tue, Aug 25 - Mon, Aug 31
Delta Logo
2:10 pm - 8:30 pm
STL
-
ORD
6h 20m
1 stop
Delta Logo
1:59 pm - 8:42 pm
ORD
-
STL
6h 43m
1 stop
$218Delta
Tue, Jul 14 - Sat, Jul 18
American Airlines Logo
8:41 pm - 10:18 pm
STL
-
ORD
1h 37mnonstop
American Airlines Logo
11:25 am - 12:50 pm
ORD
-
STL
1h 25mnonstop
$223American Airlines
Wed, Sep 9 - Thu, Sep 10
Frontier Logo
10:35 am - 7:44 pm
STL
-
ORD
9h 09m
1 stop
Frontier Logo
10:40 pm - 7:15 pm
ORD
-
STL
20h 35m
1 stop
$225Frontier
Tue, Jul 21 - Tue, Jul 28
Frontier Logo
7:03 pm - 5:37 am
STL
-
ORD
10h 34m
1 stop
Frontier Logo
5:13 pm - 11:59 pm
ORD
-
STL
6h 46m
1 stop
$230Frontier
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
9:50 am - 11:00 am
PIA
-
ORD
1h 10mnonstop
American Airlines Logo
11:08 pm - 12:15 am
ORD
-
PIA
1h 07mnonstop
$243American Airlines
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Good to know

Low seasonJanuary
Cheapest flight$47
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 8% 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.
7.7
ContourOverall score based on 42 reviews
8.0Crew
6.2Entertainment
7.4Comfort
6.9Food
7.7Boarding
Airline reviews

I’ve flown Contour on 4 different flights in the last couple weeks and every one of the flights were significantly delayed. Like over 2 hours delayed. 3 of the 4 were due to maintenance and one was weather, which is beyond their control. If this continues, I will not fly them anymore. It makes me concerned that they don’t have great maintenance practices. The planes are very old and worn out and the interiors need improvement. I do like the amount of space you have between seats for legroom. They also started charging for bags recently, which I think the did when they partnered up with American Airlines as a codeshare partner. American is also a disaster of an airline so I wish they had some agreement with Delta. I am glad they offer a major airline parternership though. That is certainly giving people more opportunities. I won’t fly Contour unless they have a direct flight to where I am going. If I have to connect then I am going to take Delta. The bus at the DFW airport to get on and off the aircraft is a pain and adds so much extra time to your travel experience. I hope this is temporary while they are building a new terminal, but I don’t know.

6.0 GoodLane, Jun 2026
DFW - TUP
Read more Contour reviews

I’ve flown Contour on 4 different flights in the last couple weeks and every one of the flights were significantly delayed. Like over 2 hours delayed. 3 of the 4 were due to maintenance and one was weather, which is beyond their control. If this continues, I will not fly them anymore. It makes me concerned that they don’t have great maintenance practices. The planes are very old and worn out and the interiors need improvement. I do like the amount of space you have between seats for legroom. They also started charging for bags recently, which I think the did when they partnered up with American Airlines as a codeshare partner. American is also a disaster of an airline so I wish they had some agreement with Delta. I am glad they offer a major airline parternership though. That is certainly giving people more opportunities. I won’t fly Contour unless they have a direct flight to where I am going. If I have to connect then I am going to take Delta. The bus at the DFW airport to get on and off the aircraft is a pain and adds so much extra time to your travel experience. I hope this is temporary while they are building a new terminal, but I don’t know.

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.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

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.

We had a mechanical delay which made us 90 minutes late (9:30 PM) then land and put into the penalty box because a plane was in our gate? What the hell! We should get priority.Damn American.

The seats were extremely cramped, with very little legroom or personal space. There was no room left in the overhead bins for a backpack, and the space under the seat in front was so limited that I could barely fit my bag underneath. Overall, the seating arrangement felt very uncomfortable and overcrowded.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

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

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