Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Chicago from $32

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Chicago departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Contour Logo
9:35 am - 11:10 am
UIN
-
ORD
1h 35mnonstop
Contour Logo
7:30 pm - 8:50 pm
ORD
-
UIN
1h 20mnonstop
$69Contour
Fri, Mar 13 - Sun, Mar 15
Contour Logo
9:35 am - 11:10 am
UIN
-
ORD
1h 35mnonstop
Contour Logo
2:40 pm - 4:00 pm
ORD
-
UIN
1h 20mnonstop
$72Contour
Sat, Mar 21 - Sun, Mar 22
United Airlines Logo
9:50 am - 11:00 am
DEC
-
ORD
1h 10mnonstop
United Airlines Logo
7:45 am - 8:52 am
ORD
-
DEC
1h 07mnonstop
$149United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
7:15 pm - 8:25 pm
DEC
-
ORD
1h 10mnonstop
United Airlines Logo
7:45 am - 8:58 am
ORD
-
DEC
1h 13mnonstop
$159United Airlines
Sat, Mar 28 - Sun, Apr 5
American Airlines Logo
1:30 pm - 2:44 pm
MLI
-
ORD
1h 14mnonstop
American Airlines Logo
5:29 pm - 6:32 pm
ORD
-
MLI
1h 03mnonstop
$179American Airlines
Fri, Mar 6 - Mon, Mar 9
American Airlines Logo
8:04 pm - 9:22 pm
MLI
-
ORD
1h 18mnonstop
American Airlines Logo
10:35 pm - 11:37 pm
ORD
-
MLI
1h 02mnonstop
$180American Airlines
Thu, Mar 5 - Sun, Mar 8
Delta Logo
6:35 am - 12:46 pm
STL
-
MDW
6h 11m
1 stop
Delta Logo
1:10 pm - 4:32 pm
MDW
-
STL
3h 22m
1 stop
$191Delta
Thu, Mar 5 - Mon, Mar 9
Delta Logo
6:47 pm - 11:56 pm
STL
-
ORD
5h 09m
1 stop
Delta Logo
5:59 pm - 11:58 pm
ORD
-
STL
5h 59m
1 stop
$191Delta
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
3:49 pm - 7:07 pm
STL
-
MDW
27h 18m
2 stops
Frontier Logo
6:05 am - 11:49 am
MDW
-
STL
5h 44m
1 stop
$193Frontier
Tue, Mar 3 - Fri, Mar 6
Frontier Logo
1:09 pm - 10:39 pm
STL
-
ORD
9h 30m
1 stop
Frontier Logo
4:18 pm - 11:19 pm
ORD
-
STL
7h 01m
1 stop
$195Frontier
Fri, Mar 6 - Wed, Mar 11

Contour flights from Illinois to Chicago

Our best Contour deals on Illinois to Chicago flight tickets
Contour
Mar 13
UIN9:35 amQuincy Regional
1h 35m
ORD11:10 amChicago O'Hare Intl
Mar 15
ORD7:30 pmChicago O'Hare Intl
1h 20m
UIN8:50 pmQuincy Regional
$69
Contour
Mar 21
UIN9:35 amQuincy Regional
1h 35m
ORD11:10 amChicago O'Hare Intl
Mar 22
ORD2:40 pmChicago O'Hare Intl
1h 20m
UIN4:00 pmQuincy Regional
$72
Contour
Mar 21
UIN9:35 amQuincy Regional
1h 35m
ORD11:10 amChicago O'Hare Intl
Mar 22
ORD7:30 pmChicago O'Hare Intl
1h 20m
UIN8:50 pmQuincy Regional
$77

Delta flights from Illinois to Chicago

Our best Delta deals on Illinois to Chicago flight tickets
Delta
Mar 5
STL6:47 pmLambert-St Louis
5h 09m
1 stop
ORD11:56 pmChicago O'Hare Intl
Mar 9
ORD5:59 pmChicago O'Hare Intl
5h 59m
1 stop
STL11:58 pmLambert-St Louis
$191
Delta
May 2
STL3:25 pmLambert-St Louis
4h 23m
1 stop
ORD7:48 pmChicago O'Hare Intl
May 4
ORD1:36 pmChicago O'Hare Intl
9h 37m
2 stops
STL11:13 pmLambert-St Louis
$196
Delta
Apr 22
STL6:20 amLambert-St Louis
6h 23m
2 stops
MDW12:43 pmChicago Midway
Apr 24
MDW7:16 pmChicago Midway
3h 57m
1 stop
STL11:13 pmLambert-St Louis
$199

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Chicago 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 February 13, 2026.
Use the filters below to find and compare flights from Illinois to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

Fri 3/13

9:35 am-11:10 am

Nonstop1h 35m

Chicago O'Hare Intl

Sun 3/15

7:30 pm-8:50 pm

Nonstop1h 20m

$69

QuincyChicago

UIN - ORD

UINORD

Quincy Regional

Sat 3/21

9:35 am-11:10 am

Nonstop1h 35m

Chicago O'Hare Intl

Sun 3/22

2:40 pm-4:00 pm

Nonstop1h 20m

$72

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Wed 2/25

9:50 am-11:00 am

Nonstop1h 10m

Chicago O'Hare Intl

Sun 3/1

7:45 am-8:52 am

Nonstop1h 07m

$149

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Sat 3/28

7:15 pm-8:25 pm

Nonstop1h 10m

Chicago O'Hare Intl

Sun 4/5

7:45 am-8:58 am

Nonstop1h 13m

$159

MolineChicago

MLI - ORD

MLIORD

Moline Quad-City

Fri 3/6

1:30 pm-2:44 pm

Nonstop1h 14m

Chicago O'Hare Intl

Mon 3/9

5:29 pm-6:32 pm

Nonstop1h 03m

$179

MolineChicago

MLI - ORD

MLIORD

Moline Quad-City

Thu 3/5

8:04 pm-9:22 pm

Nonstop1h 18m

Chicago O'Hare Intl

Sun 3/8

10:35 pm-11:37 pm

Nonstop1h 02m

$180

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 3/5

6:35 am-12:46 pm

1 stop6h 11m

Chicago Midway

Mon 3/9

1:10 pm-4:32 pm

1 stop3h 22m

$191

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 3/5

6:47 pm-11:56 pm

1 stop5h 09m

Chicago O'Hare Intl

Mon 3/9

5:59 pm-11:58 pm

1 stop5h 59m

$191

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 3/3

3:49 pm-7:07 pm

2 stops27h 18m

Chicago Midway

Fri 3/6

6:05 am-11:49 am

1 stop5h 44m

$193

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 3/6

1:09 pm-10:39 pm

1 stop9h 30m

Chicago O'Hare Intl

Wed 3/11

4:18 pm-11:19 pm

1 stop7h 01m

$195

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Chicago from

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

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 $384. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Chicago for around $554.

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 $339. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $422.

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

$43

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 $43. The best round-trip flight deal from Illinois to Chicago found on momondo in the last 72 hours is $98.
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?

  • 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?

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 AirlinesPriceFrom $179Free CancellationRating
7.4
9,286 reviews
Search United Airlines flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
11,277 reviews
Search American Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
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.

An easier way to manage your Chicago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 3/15
Sun 3/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport