How many flights depart from Illinois to Chicago on average per week?

As of December 2025, there are 634 flights per week flying from Illinois to Chicago. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.

What is the cheapest airline that flies from Illinois to Chicago?

Southwest, United Airlines, and American Airlines are the most popular carriers operating from Illinois to Chicago

How many flights depart from Illinois to Chicago on average per day?

As of December 2025, there are 90 flights per day flying from Illinois to Chicago. The most common time of day flights depart is 6:00AM, with 52% of flights taking off at noon.

How long does it take to fly to Chicago?

Average flight duration from Illinois to Chicago depends on which airport you fly into and out of. Flying from Peoria to Chicago O'Hare Intl Airport is 1h 03m on average, while flying from Moline to Chicago O'Hare Intl Airport is 1h 08m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

When did momondo last update prices for flights from Illinois to Chicago?

Prices for flights from Illinois to Chicago are refreshed on a daily basis.

How many operators does momondo search for flights from Illinois to Chicago?

As of December 2025, there are 5 operators available to choose from for flights from Illinois to Chicago.

How old do you have to be to fly from Illinois to Chicago?

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 Illinois to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago 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 Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$65 Cheap Flights from Illinois to Chicago in 2025/26

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Find the cheapest flights from Illinois to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 10:10 am

BRL

ORD

1h 10mnonstop

10:50 am - 12:10 pm

ORD

BRL

1h 20mnonstop

$87Contour

Tue, Jan 20 - Thu, Jan 22

9:50 am - 11:10 am

UIN

ORD

1h 20mnonstop

2:40 pm - 4:00 pm

ORD

UIN

1h 20mnonstop

$88Contour

Fri, Jan 9 - Tue, Jan 13

3:49 pm - 5:46 pm

STL

ORD

25h 57m1 stop

8:30 am - 10:27 pm

ORD

STL

13h 57m1 stop

$141Multiple Airlines

Mon, Feb 23 - Wed, Feb 25

7:09 pm - 8:25 pm

DEC

ORD

1h 16mnonstop

7:45 am - 9:05 am

ORD

DEC

1h 20mnonstop

$149United Airlines

Sat, Jan 10 - Wed, Jan 14

7:41 am - 9:10 am

STL

ORD

1h 29mnonstop

7:40 pm - 9:05 pm

ORD

STL

1h 25mnonstop

$153United Airlines

Tue, Feb 17 - Tue, Feb 24

10:25 am - 11:35 am

STL

MDW

1h 10mnonstop

8:15 am - 9:35 am

MDW

STL

1h 20mnonstop

$157Southwest

Sat, Jan 17 - Mon, Jan 19

3:49 pm - 5:46 pm

STL

ORD

25h 57m1 stop

3:11 pm - 12:27 am

ORD

STL

9h 16m1 stop

$157Multiple Airlines

Mon, Feb 23 - Fri, Feb 27

6:00 am - 7:27 am

STL

ORD

1h 27mnonstop

6:50 pm - 8:13 pm

ORD

STL

1h 23mnonstop

$162American Airlines

Wed, Jan 21 - Sat, Jan 31

11:05 am - 12:34 pm

STL

ORD

1h 29mnonstop

6:50 pm - 8:13 pm

ORD

STL

1h 23mnonstop

$171American Airlines

Thu, Feb 5 - Mon, Feb 9

4:30 pm - 5:40 pm

STL

MDW

1h 10mnonstop

8:15 am - 9:35 am

MDW

STL

1h 20mnonstop

$171Southwest

Thu, Feb 5 - Mon, Feb 9

Contour flights from Illinois to Chicago

Our best Contour deals on Illinois to Chicago flight tickets

Contour

Jan 20

BRL9:00 amBurlington

1h 10m

ORD10:10 amChicago O'Hare Intl

Jan 22

ORD10:50 amChicago O'Hare Intl

1h 20m

BRL12:10 pmBurlington

$87

Find similar

Contour

Jan 9

UIN9:50 amQuincy Regional

1h 20m

ORD11:10 amChicago O'Hare Intl

Jan 13

ORD2:40 pmChicago O'Hare Intl

1h 20m

UIN4:00 pmQuincy Regional

$88

Find similar

Contour

Feb 19

UIN9:50 amQuincy Regional

1h 20m

ORD11:10 amChicago O'Hare Intl

Feb 22

ORD7:30 pmChicago O'Hare Intl

1h 20m

UIN8:50 pmQuincy Regional

$98

Find similar

American Airlines flights from Illinois to Chicago

Our best American Airlines deals on Illinois to Chicago flight tickets

American Airlines

Jan 21

STL6:00 amLambert-St Louis

1h 27m

ORD7:27 amChicago O'Hare Intl

Jan 31

ORD6:50 pmChicago O'Hare Intl

1h 23m

STL8:13 pmLambert-St Louis

$162

Find similar

American Airlines

Feb 5

STL11:05 amLambert-St Louis

1h 29m

ORD12:34 pmChicago O'Hare Intl

Feb 9

ORD6:50 pmChicago O'Hare Intl

1h 23m

STL8:13 pmLambert-St Louis

$171

Find similar

American Airlines

Jan 22

STL1:35 pmLambert-St Louis

1h 22m

ORD2:57 pmChicago O'Hare Intl

Jan 26

ORD8:50 amChicago O'Hare Intl

1h 30m

STL10:20 amLambert-St Louis

$172

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BurlingtonChicago

BRL - ORD

BRLORD

Burlington

Tue 1/20

9:00 am-10:10 am

Nonstop1h 10m

Chicago O'Hare Intl

Thu 1/22

10:50 am-12:10 pm

Nonstop1h 20m

$87

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

Fri 1/9

9:50 am-11:10 am

Nonstop1h 20m

Chicago O'Hare Intl

Tue 1/13

2:40 pm-4:00 pm

Nonstop1h 20m

$88

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 2/23

3:49 pm-5:46 pm

1 stop25h 57m

Chicago O'Hare Intl

Wed 2/25

8:30 am-10:27 pm

1 stop13h 57m

$141

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Sat 1/10

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Wed 1/14

7:45 am-9:05 am

Nonstop1h 20m

$149

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 2/17

7:41 am-9:10 am

Nonstop1h 29m

Chicago O'Hare Intl

Tue 2/24

7:40 pm-9:05 pm

Nonstop1h 25m

$153

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 1/17

10:25 am-11:35 am

Nonstop1h 10m

Chicago Midway

Mon 1/19

8:15 am-9:35 am

Nonstop1h 20m

$157

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 2/23

3:49 pm-5:46 pm

1 stop25h 57m

Chicago O'Hare Intl

Fri 2/27

3:11 pm-12:27 am

1 stop9h 16m

$157

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 1/21

6:00 am-7:27 am

Nonstop1h 27m

Chicago O'Hare Intl

Sat 1/31

6:50 pm-8:13 pm

Nonstop1h 23m

$162

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 2/5

11:05 am-12:34 pm

Nonstop1h 29m

Chicago O'Hare Intl

Mon 2/9

6:50 pm-8:13 pm

Nonstop1h 23m

$171

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 2/5

4:30 pm-5:40 pm

Nonstop1h 10m

Chicago Midway

Mon 2/9

8:15 am-9:35 am

Nonstop1h 20m

$171

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 Illinois to Chicago

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 day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $391. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Chicago for around $560.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Illinois to Chicago during this time can be as low as $309. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $432.

What is the cheapest Illinois to Chicago flight route?

Fly from Chicago Greater Rockford to Chicago O'Hare Intl for the best Illinois - Chicago flight prices

What cabin class options are available on Illinois to Chicago flights?

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

Cheap Illinois to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Chicago

Best Price Found	$35
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from Illinois in the past 72 hours is $35. The best round-trip flight deal from Illinois to Chicago found on momondo in the last 72 hours is $108.

The fastest flight from Illinois to Chicago takes 0h 50m

Direct flights go from Illinois to Chicago every day.

There are 3 airports in Chicago. From Illinois there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

When did momondo last update prices for flights from Illinois to Chicago?
Prices for flights from Illinois to Chicago are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Chicago?
As of December 2025, there are 5 operators available to choose from for flights from Illinois to Chicago.
How old do you have to be to fly from Illinois to Chicago?
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 Illinois to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago 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 Chicago. 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 Illinois to Chicago?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Chicago is Airbus A321neo, representing 14.85% of all bookings. The subsequent popular models are Airbus A320neo at 9.67%, Airbus A320-100/200 at 8.51%, and Boeing 737 MAX 8 at 7.73%.

Best airlines flying from Illinois to Chicago

Compare and see reviews for airlines that fly from Illinois to Chicago with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $179	Free Cancellation	Rating 7.4 9,113 reviews		Search United Airlines flights
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.2 11,073 reviews		Search American Airlines flights

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Hammond

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Saint Joseph

Portage

Lansing

Valparaiso

Schererville

Munster

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

It is quick and easy to find Illinois to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

momondo does allow users to show only those flights to Chicago from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Illinois to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Chicago from Illinois. 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.