
Popular airlines to Illinois
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American Airlines
United
Frontier Airlines
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Cheap round-trip flights to Illinois
Prices were available within the past 7 days and start at ฿7,195 for one-way flights and ฿7,650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 14 Oct - Tue, 28 Oct
SGF
Springfield
ORD
Chicago
฿7,650 Return, found 10 hours ago
฿7,650
Return
found 10 hours ago

Wed, 15 Oct - Thu, 30 Oct
SGF
Springfield
ORD
Chicago
฿8,220 Return, found 9 hours ago
฿8,220
Return
found 9 hours ago

Wed, 15 Oct - Wed, 29 Oct
SGF
Springfield
MDW
Chicago
฿8,575 Return, found 18 hours ago
฿8,575
Return
found 18 hours ago

Tue, 14 Oct - Tue, 28 Oct
SGF
Springfield
ORD
Chicago
฿9,210 Return, found 10 hours ago
฿9,210
Return
found 10 hours ago

Sun, 26 Oct - Tue, 11 Nov
BKK
Bangkok
ORD
Chicago
฿32,064 Return, just found
฿32,064
Return
just found

Mon, 1 Sep - Fri, 5 Sep
BKK
Bangkok
MDW
Chicago
฿33,500 Return, found 2 days ago
฿33,500
Return
found 2 days ago

Thu, 25 Dec - Tue, 6 Jan
BKK
Bangkok
ORD
Chicago
฿34,555 Return, found 1 hour ago
฿34,555
Return
found 1 hour ago

Wed, 5 Nov - Mon, 10 Nov
BKK
Bangkok
ORD
Chicago
฿34,705 Return, found 1 hour ago
฿34,705
Return
found 1 hour ago

Tue, 2 Sep - Thu, 11 Sep
BKK
Bangkok
EVV
Evansville
฿34,860 Return, found 3 days ago
฿34,860
Return
found 3 days ago

Sun, 23 Nov - Sun, 30 Nov
BKK
Bangkok
PIA
Peoria
฿34,860 Return, found 2 days ago
฿34,860
Return
found 2 days ago
About Illinois
Expedia offers flights to Illinois to meet every traveller'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.
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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.

Sun, 26 Oct - Tue, 11 Nov
BKK
Bangkok
ORD
Chicago
฿32,064 Return, just found
฿32,064
Return
just found
*Available to Expedia members.