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How much is the cheapest flight to Illinois?
Prices were available within the past 7 days and start at ₩213,400 for one-way flights and ₩365,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mon, Jul 1 - Wed, Jul 3
YTZ
Billy Bishop Toronto City
MDW
Midway Intl.
₩365,100 Roundtrip, found 2 days ago
₩365,100
Roundtrip
found 2 days ago
Wed, Jul 24 - Wed, Jul 31
YTZ
Billy Bishop Toronto City
ORD
O'Hare Intl.
₩387,300 Roundtrip, found 6 days ago
₩387,300
Roundtrip
found 6 days ago
Thu, Nov 21 - Tue, Dec 3
ICN
Incheon Intl.
ORD
O'Hare Intl.
₩1,328,400 Roundtrip, found 5 days ago
₩1,328,400
Roundtrip
found 5 days ago
Sun, Aug 18 - Sun, Aug 25
YTZ
Billy Bishop Toronto City
STL
Lambert-St. Louis Intl.
₩1,337,500 Roundtrip, found 4 days ago
₩1,337,500
Roundtrip
found 4 days ago
Sat, Oct 5 - Wed, Oct 9
ICN
Incheon Intl.
ORD
O'Hare Intl.
₩1,399,300 Roundtrip, found 3 days ago
₩1,399,300
Roundtrip
found 3 days ago
Mon, Sep 23 - Mon, Sep 30
ICN
Incheon Intl.
ORD
O'Hare Intl.
₩1,490,400 Roundtrip, found 2 days ago
₩1,490,400
Roundtrip
found 2 days ago
Thu, Oct 17 - Mon, Oct 21
ICN
Incheon Intl.
STL
Lambert-St. Louis Intl.
₩1,524,500 Roundtrip, found 15 hours ago
₩1,524,500
Roundtrip
found 15 hours ago
Sun, Sep 22 - Sat, Oct 5
ICN
Incheon Intl.
CMI
University Of Illinois Urbana-Champaign Williard
₩1,551,500 Roundtrip, found 6 days ago
₩1,551,500
Roundtrip
found 6 days ago
Wed, Sep 25 - Sat, Sep 28
ICN
Incheon Intl.
MLI
Quad City Intl.
₩1,554,500 Roundtrip, found 4 days ago
₩1,554,500
Roundtrip
found 4 days ago
Mon, Oct 7 - Tue, Oct 15
ICN
Incheon Intl.
ORD
O'Hare Intl.
₩1,639,700 Roundtrip, just found
₩1,639,700
Roundtrip
just found
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
Explore Illinois
Flying to Illinois? Explore Illinois with Expedia's Travel Guides to find the best hotels, vacation packages, car rental deals and more!
Top Flight Destinations In Illinois
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Top Illinois Hotels
- Congress Plaza Hotel
- River Hotel
- Eurostars Magnificent Mile
- Hotel Felix River North/Magnificent Mile
- Club Quarters Hotel, Central Loop, Chicago
- InterContinental Chicago Magnificent Mile, an IHG Hotel
- The Westin Michigan Avenue Chicago
- Freehand Chicago
- Warwick Allerton - Chicago
- Hyatt Regency Chicago
- Hilton Garden Inn Chicago Downtown/Magnificent Mile
- The Royal Sonesta Chicago Downtown
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