
Popular airlines to Illinois
Delta
American Airlines
Frontier Airlines
United
Southwest Airlines
Spirit Airlines
Alaska Airlines
Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 30% on select hotels after you book a flight*
Cheap round-trip flights to Illinois
Prices were available within the past 7 days and start at RM458 for one-way flights and RM914 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, 8 Nov - Sat, 15 Nov
LAX
Los Angeles
ORD
Chicago
RM914 Return, found 3 days ago
RM914
Return
found 3 days ago

Sat, 8 Nov - Sat, 15 Nov
LAX
Los Angeles
ORD
Chicago
RM1,095 Return, found 3 days ago
RM1,095
Return
found 3 days ago

Sat, 8 Nov - Sat, 15 Nov
LAX
Los Angeles
ORD
Chicago
RM1,095 Return, found 3 days ago
RM1,095
Return
found 3 days ago

Wed, 25 Feb - Tue, 10 Mar
KUL
Kuala Lumpur
ORD
Chicago
RM3,998 Return, found 1 day ago
RM3,998
Return
found 1 day ago

Mon, 27 Oct - Mon, 10 Nov
KUL
Kuala Lumpur
ORD
Chicago
RM4,139 Return, found 6 hours ago
RM4,139
Return
found 6 hours ago

Tue, 20 Jan - Wed, 4 Feb
KUL
Kuala Lumpur
ORD
Chicago
RM4,465 Return, found 1 day ago
RM4,465
Return
found 1 day ago

Wed, 6 May - Sun, 6 Sept
KUL
Kuala Lumpur
ORD
Chicago
RM4,565 Return, found 20 hours ago
RM4,565
Return
found 20 hours ago

Wed, 11 Feb - Wed, 18 Feb
KUL
Kuala Lumpur
ORD
Chicago
RM4,628 Return, found 2 days ago
RM4,628
Return
found 2 days ago

Tue, 1 Sept - Tue, 8 Sept
KUL
Kuala Lumpur
ORD
Chicago
RM4,754 Return, found 11 hours ago
RM4,754
Return
found 11 hours ago

Sun, 15 Mar - Tue, 31 Mar
KUL
Kuala Lumpur
ORD
Chicago
RM4,774 Return, found 1 day ago
RM4,774
Return
found 1 day ago
About Illinois
Expedia offers flights to Illinois to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Illinois or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
Frequently asked questions
Top Flight Destinations In the World
- Flights to Russia
- Flights to United States of America
- Flights to South Korea
- Flights to Türkiye
- Flights to Canada
- Flights to France
- Flights to Italy
- Flights to Switzerland
- Flights to Mexico
- Flights to Sweden
- Flights to Indonesia
- Flights to India
- Flights to Brazil
- Flights to Norway
- Flights to Philippines
- Flights to Argentina
- Flights to Australia
- Flights to United Kingdom
- Flights to Spain
- Flights to China
Top Illinois Hotels
- Congress Plaza Hotel
- Freehand Chicago
- Embassy Suites by Hilton Chicago Downtown River North
- Hilton Chicago/Magnificent Mile Suites
- InterContinental Chicago Magnificent Mile by IHG
- citizenM Chicago Downtown
- Warwick Allerton - Chicago
- Aloft Chicago Mag Mile
- The Whitehall Hotel, BW Premier Collection
- Sable at Navy Pier Chicago, Curio Collection by Hilton
- Crowne Plaza Chicago West Loop by IHG
- Palmer House a Hilton Hotel
- DoubleTree by Hilton Chicago - Magnificent Mile
- Hotel Riu Plaza Chicago
- Hilton Chicago
- Hotel Felix River North/Magnificent Mile
Trending flights to Illinois
These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, 25 Feb - Tue, 10 Mar
KUL
Kuala Lumpur
ORD
Chicago
RM3,998 Return, found 1 day ago
RM3,998
Return
found 1 day ago
*Available to Expedia members.