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Cheap flights from Chicago O'Hare Intl Airport to Illinois from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Illinois departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Contour Logo
10:50 am - 12:10 pm
ORD
-
BRL
1h 20mnonstop
Contour Logo
4:25 pm - 5:45 pm
BRL
-
ORD
1h 20mnonstop
$88Contour
Thu, Jan 8 - Mon, Jan 12
Contour Logo
10:50 am - 12:10 pm
ORD
-
BRL
1h 20mnonstop
Contour Logo
9:00 am - 10:10 am
BRL
-
ORD
1h 10mnonstop
$89Contour
Fri, Feb 27 - Sun, Mar 1
Contour Logo
10:50 am - 12:10 pm
ORD
-
BRL
1h 20mnonstop
Contour Logo
4:25 pm - 5:45 pm
BRL
-
ORD
1h 20mnonstop
$98Contour
Wed, Jan 7 - Sun, Jan 11
Multiple Airlines Logo
10:48 am - 11:33 pm
ORD
-
STL
12h 45m1 stop
Multiple Airlines Logo
5:42 pm - 10:41 am
STL
-
ORD
16h 59m1 stop
$145Multiple Airlines
Wed, Jan 21 - Wed, Jan 28
United Airlines Logo
4:52 pm - 6:01 pm
ORD
-
DEC
1h 09mnonstop
United Airlines Logo
9:49 am - 11:05 am
DEC
-
ORD
1h 16mnonstop
$149United Airlines
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
11:45 am - 11:33 pm
ORD
-
STL
11h 48m1 stop
Multiple Airlines Logo
11:18 am - 7:41 pm
STL
-
ORD
8h 23m1 stop
$151Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
American Airlines Logo
1:25 pm - 2:50 pm
ORD
-
STL
1h 25mnonstop
American Airlines Logo
6:00 am - 7:27 am
STL
-
ORD
1h 27mnonstop
$153American Airlines
Tue, Jan 20 - Wed, Jan 21
United Airlines Logo
4:52 pm - 6:01 pm
ORD
-
DEC
1h 09mnonstop
United Airlines Logo
9:49 am - 11:05 am
DEC
-
ORD
1h 16mnonstop
$159United Airlines
Thu, Jan 8 - Sun, Jan 11
American Airlines Logo
11:40 am - 1:03 pm
ORD
-
STL
1h 23mnonstop
American Airlines Logo
6:44 pm - 8:15 pm
STL
-
ORD
1h 31mnonstop
$172American Airlines
Thu, Jan 29 - Mon, Feb 2
Delta Logo
7:05 am - 10:08 pm
ORD
-
BMI
15h 03m1 stop
Delta Logo
6:00 am - 4:49 pm
BMI
-
ORD
10h 49m1 stop
$761Delta
Sun, Feb 8 - Sun, Feb 15

Delta flights from Chicago O'Hare Intl Airport to Illinois

Our best Delta deals on Chicago O'Hare Intl Airport to Illinois flight tickets
Delta
Feb 10
ORD2:50 pmChicago O'Hare Intl
5h 47m
1 stop
STL8:37 pmLambert-St Louis
Feb 17
STL11:55 amLambert-St Louis
8h 49m
2 stops
ORD8:44 pmChicago O'Hare Intl
$178
Find similar
Delta
Feb 9
ORD8:50 amChicago O'Hare Intl
5h 48m
1 stop
STL2:38 pmLambert-St Louis
Feb 18
STL11:23 amLambert-St Louis
6h 38m
1 stop
ORD6:01 pmChicago O'Hare Intl
$182
Find similar
Delta
Jan 24
ORD5:30 amChicago O'Hare Intl
6h 24m
1 stop
STL11:54 amLambert-St Louis
Jan 27
STL6:10 amLambert-St Louis
7h 08m
2 stops
ORD1:18 pmChicago O'Hare Intl
$187
Find similar

Frontier flights from Chicago O'Hare Intl Airport to Illinois

Our best Frontier deals on Chicago O'Hare Intl Airport to Illinois flight tickets
Frontier
Jan 8
ORD5:50 amChicago O'Hare Intl
8h 58m
1 stop
STL2:48 pmLambert-St Louis
Jan 12
STL1:07 pmLambert-St Louis
8h 25m
1 stop
ORD9:32 pmChicago O'Hare Intl
$183
Find similar
Frontier
Jan 8
ORD10:32 pmChicago O'Hare Intl
13h 40m
1 stop
STL12:12 pmLambert-St Louis
Jan 11
STL9:35 amLambert-St Louis
9h 42m
1 stop
ORD7:17 pmChicago O'Hare Intl
$197
Find similar
Frontier
Jan 9
ORD5:50 amChicago O'Hare Intl
8h 58m
1 stop
STL2:48 pmLambert-St Louis
Jan 12
STL1:07 pmLambert-St Louis
8h 25m
1 stop
ORD9:32 pmChicago O'Hare Intl
$218
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 26, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Thu 1/8

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Mon 1/12

4:25 pm-5:45 pm

Nonstop1h 20m

$88

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Fri 2/27

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Sun 3/1

9:00 am-10:10 am

Nonstop1h 10m

$89

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Wed 1/7

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Sun 1/11

4:25 pm-5:45 pm

Nonstop1h 20m

$98

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 1/21

10:48 am-11:33 pm

1 stop12h 45m

Lambert-St Louis

Wed 1/28

5:42 pm-10:41 am

1 stop16h 59m

$145

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Thu 1/8

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

Mon 1/12

9:49 am-11:05 am

Nonstop1h 16m

$149

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Fri 1/23

11:45 am-11:33 pm

1 stop11h 48m

Lambert-St Louis

Fri 1/30

11:18 am-7:41 pm

1 stop8h 23m

$151

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 1/20

1:25 pm-2:50 pm

Nonstop1h 25m

Lambert-St Louis

Wed 1/21

6:00 am-7:27 am

Nonstop1h 27m

$153

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Thu 1/8

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

Sun 1/11

9:49 am-11:05 am

Nonstop1h 16m

$159

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 1/29

11:40 am-1:03 pm

Nonstop1h 23m

Lambert-St Louis

Mon 2/2

6:44 pm-8:15 pm

Nonstop1h 31m

$172

ChicagoBloomington

ORD - BMI

ORDBMI

Chicago O'Hare Intl

Sun 2/8

7:05 am-10:08 pm

1 stop15h 03m

Bloomington-Normal

Sun 2/15

6:00 am-4:49 pm

1 stop10h 49m

$761

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest Chicago O'Hare Intl to Illinois flight route?

Fly from Chicago O'Hare Intl to Moline Quad-City for the best Chicago O'Hare Intl - Illinois flight prices

What cabin class options are available on Chicago O'Hare Intl to Illinois flights?

There are 4 cabin classes available to choose from on Chicago O'Hare Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Chicago O'Hare Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Illinois

Best Price Found

$44

Fastest flight time

0h 56m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Chicago O'Hare Intl Airport in the past 72 hours is $44. The best round-trip flight deal from Chicago O'Hare Intl Airport to Illinois found on momondo in the last 72 hours is $98.
The fastest flight from Chicago O'Hare Intl Airport to Illinois takes 0h 56m
Direct flights go from Chicago O'Hare Intl Airport to Illinois every day.
There are 98 airports in Illinois. From Chicago O'Hare Intl Airport there are direct flights to Decatur Arpt (DEC), Evansville Dress Regional (EVV), Greater Peoria (PIA), Lambert-St Louis (STL) and 5 more.
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Illinois?

    Prices for flights from Chicago O'Hare Intl Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Illinois?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Illinois?

Best airlines flying from Chicago O'Hare Intl Airport to Illinois

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $179Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights
American AirlinesPriceFrom $363Free CancellationRating
7.2
11,061 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Illinois for you.

Can I find flights from Chicago to Illinois with flexible booking policies on momondo?

Flights from Chicago to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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