How many flights depart from Chicago O'Hare Intl Airport to Illinois on average per day?

71 flights are operational daily from Chicago O'Hare Intl Airport to Illinois as of March 2026. The most popular departure time for this route is 10:00PM, with 41% of flights per day taking off in the evening.

How many flights depart from Chicago O'Hare Intl Airport to Illinois on average per week?

As of March 2026, 500 flights take off from Chicago O'Hare Intl Airport and land in Illinois each week. The most common flight departure day for this route is Tue, with 26% of weekly flights taking off on this day.

What is the cheapest airline that flies from Chicago O'Hare Intl to Illinois?

Contour, United Airlines, and Southwest are the most popular carriers operating from Chicago O'Hare Intl to Illinois

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?

There are 4 operators available for flights from Chicago O'Hare Intl Airport to Illinois as of March 2026.

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.

$39 Cheap Flights from Chicago O'Hare Intl Airport to Illinois in 2026

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Find the cheapest flights from Chicago O'Hare Intl Airport to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 pm - 8:05 pm

ORD

BRL

1h 20mnonstop

9:10 am - 10:35 am

BRL

ORD

1h 25mnonstop

$79Contour

Mon, Apr 13 - Sat, Apr 18

12:00 pm - 1:20 pm

ORD

BRL

1h 20mnonstop

9:10 am - 10:35 am

BRL

ORD

1h 25mnonstop

$80Contour

Fri, Apr 10 - Tue, Apr 14

4:49 pm - 5:58 pm

ORD

DEC

1h 09mnonstop

9:52 am - 11:05 am

DEC

ORD

1h 13mnonstop

$149United Airlines

Sat, Apr 11 - Wed, Apr 15

11:45 am - 12:54 pm

ORD

DEC

1h 09mnonstop

7:25 pm - 8:38 pm

DEC

ORD

1h 13mnonstop

$159United Airlines

Sat, May 9 - Wed, May 13

5:21 pm - 6:28 pm

ORD

CMI

1h 07mnonstop

2:28 pm - 3:43 pm

CMI

ORD

1h 15mnonstop

$229American Airlines

Tue, Apr 21 - Tue, Apr 28

6:05 am - 1:22 pm

ORD

STL

7h 17m

1 stop

5:21 pm - 6:55 pm

STL

ORD

1h 34mnonstop

$236American Airlines

Thu, Apr 23 - Mon, Apr 27

5:30 pm - 8:55 am

ORD

STL

39h 25m

2 stops

5:27 pm - 7:55 am

STL

ORD

14h 28m

1 stop

$237Frontier

Mon, May 11 - Mon, May 18

1:59 pm - 4:54 pm

ORD

STL

26h 55m

1 stop

8:08 pm - 7:55 am

STL

ORD

11h 47m

2 stops

$238Frontier

Wed, May 6 - Sun, May 10

11:28 am - 6:50 am

ORD

STL

19h 22m

1 stop

4:59 pm - 10:23 am

STL

ORD

17h 24m

2 stops

$248Multiple Airlines

Thu, Apr 16 - Sun, Apr 19

11:28 am - 6:50 am

ORD

STL

19h 22m

1 stop

8:06 pm - 10:39 pm

STL

ORD

26h 33m

2 stops

$250Multiple Airlines

Sun, Apr 26 - Sun, May 3

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

May 6

ORD1:59 pmChicago O'Hare Intl

26h 55m

1 stop

STL4:54 pmLambert-St Louis

May 10

STL8:08 pmLambert-St Louis

11h 47m

2 stops

ORD7:55 amChicago O'Hare Intl

$238

Frontier

Apr 24

ORD4:28 pmChicago O'Hare Intl

14h 22m

1 stop

STL6:50 amLambert-St Louis

Apr 26

STL4:59 pmLambert-St Louis

18h 33m

2 stops

ORD11:32 amChicago O'Hare Intl

$241

Frontier

Apr 24

ORD4:28 pmChicago O'Hare Intl

14h 22m

1 stop

STL6:50 amLambert-St Louis

Apr 27

STL8:17 pmLambert-St Louis

13h 45m

2 stops

ORD10:02 amChicago O'Hare Intl

$243

American Airlines flights from Chicago O'Hare Intl Airport to Illinois

Our best American Airlines deals on Chicago O'Hare Intl Airport to Illinois flight tickets

American Airlines

Apr 21

ORD5:21 pmChicago O'Hare Intl

1h 07m

CMI6:28 pmChampaign University-Willard

Apr 28

CMI2:28 pmChampaign University-Willard

1h 15m

ORD3:43 pmChicago O'Hare Intl

$229

American Airlines

Apr 23

ORD6:05 amChicago O'Hare Intl

7h 17m

1 stop

STL1:22 pmLambert-St Louis

Apr 27

STL5:21 pmLambert-St Louis

1h 34m

ORD6:55 pmChicago O'Hare Intl

$236

American Airlines

Apr 29

ORD10:51 pmChicago O'Hare Intl

1h 01m

BMI11:52 pmBloomington-Normal

May 6

BMI5:00 amBloomington-Normal

1h 01m

ORD6:01 amChicago O'Hare Intl

$244

momondo Fare Finder

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

Cheapest round-trip

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Mon 4/13

6:45 pm-8:05 pm

Nonstop1h 20m

Burlington

Sat 4/18

9:10 am-10:35 am

Nonstop1h 25m

$79

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Fri 4/10

12:00 pm-1:20 pm

Nonstop1h 20m

Burlington

Tue 4/14

9:10 am-10:35 am

Nonstop1h 25m

$80

Quickest round-trip

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Sat 4/11

4:49 pm-5:58 pm

Nonstop1h 09m

Decatur Arpt

Wed 4/15

9:52 am-11:05 am

Nonstop1h 13m

$149

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Sat 5/9

11:45 am-12:54 pm

Nonstop1h 09m

Decatur Arpt

Wed 5/13

7:25 pm-8:38 pm

Nonstop1h 13m

$159

ChicagoChampaign

ORD - CMI

ORDCMI

Chicago O'Hare Intl

Tue 4/21

5:21 pm-6:28 pm

Nonstop1h 07m

Champaign University-Willard

Tue 4/28

2:28 pm-3:43 pm

Nonstop1h 15m

$229

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 4/23

6:05 am-1:22 pm

1 stop7h 17m

Lambert-St Louis

Mon 4/27

5:21 pm-6:55 pm

Nonstop1h 34m

$236

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Mon 5/11

5:30 pm-8:55 am

2 stops39h 25m

Lambert-St Louis

Mon 5/18

5:27 pm-7:55 am

1 stop14h 28m

$237

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 5/6

1:59 pm-4:54 pm

1 stop26h 55m

Lambert-St Louis

Sun 5/10

8:08 pm-7:55 am

2 stops11h 47m

$238

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 4/16

11:28 am-6:50 am

1 stop19h 22m

Lambert-St Louis

Sun 4/19

4:59 pm-10:23 am

2 stops17h 24m

$248

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sun 4/26

11:28 am-6:50 am

1 stop19h 22m

Lambert-St Louis

Sun 5/3

8:06 pm-10:39 pm

2 stops26h 33m

$250

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 3 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	$254
Fastest flight time	0h 59m
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 $254. The best round-trip flight deal from Chicago O'Hare Intl Airport to Illinois found on momondo in the last 72 hours is $95.

The fastest flight from Chicago O'Hare Intl Airport to Illinois takes 0h 59m

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), Greater Peoria (PIA), Moline Quad-City (MLI), Springfield Capital (SPI) and 2 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?
There are 4 operators available for flights from Chicago O'Hare Intl Airport to Illinois as of March 2026.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago O'Hare Intl Airport to Illinois is Canadair (Bombardier) Regional Jet (35.11% of total bookings). The next most popular plane models are Embraer 170 (14.89%), Canadair (Bombardier) Regional Jet CRJ-550 (14.89%), and Canadair (Bombardier) Regional Jet 700 (8.51%).

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
American Airlines	PriceFrom $168	Free Cancellation	Rating 7.1 11,543 reviews		Search American Airlines flights
United Airlines	PriceFrom $179	Free Cancellation	Rating 7.4 9,525 reviews		Search United 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.