Cheap Flights to Illinois from ₩727,800

Popular airlines to Illinois

  • Delta

    Delta

  • United

    United

  • American Airlines

    American Airlines

  • Korean Air

    Korean Air

  • Air Canada

    Air Canada

  • Cathay Pacific

    Cathay Pacific

  • EVA Airways

    EVA Airways

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Top Cities to Visit in Illinois

Chicago which includes a city and a high rise building as well as a family
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Chicago

Chicago
Champaign showing signage and heritage elements
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Champaign

Champaign

How much is the cheapest flight to Illinois?

Prices were available within the past 7 days and start at ₩727,800 for one-way flights and ₩924,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Feb 5 - Mon, Feb 16
ICN
Seoul
STL
St. Louis
₩924,200 Roundtrip, found 1 day ago
₩924,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 5 from Seoul to St. Louis, returning Mon, Feb 16, priced at ₩924,200 found 1 day ago
Delta
Mon, Oct 13 - Mon, Dec 29
ICN
Seoul
STL
St. Louis
₩928,500 Roundtrip, found 4 days ago
₩928,500
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Oct 13 from Seoul to St. Louis, returning Mon, Dec 29, priced at ₩928,500 found 4 days ago
United
Tue, Oct 14 - Tue, Oct 21
ICN
Seoul
STL
St. Louis
₩956,000 Roundtrip, found 1 day ago
₩956,000
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 14 from Seoul to St. Louis, returning Tue, Oct 21, priced at ₩956,000 found 1 day ago
American Airlines
Tue, Oct 7 - Tue, Oct 21
ICN
Seoul
CMI
Champaign
₩974,200 Roundtrip, found 3 days ago
₩974,200
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 7 from Seoul to Champaign, returning Tue, Oct 21, priced at ₩974,200 found 3 days ago
American Airlines
Sun, Mar 1 - Tue, Mar 24
ICN
Seoul
PIA
Peoria
₩1,044,200 Roundtrip, found 3 days ago
₩1,044,200
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Mar 1 from Seoul to Peoria, returning Tue, Mar 24, priced at ₩1,044,200 found 3 days ago
American Airlines
Tue, Oct 7 - Sun, Oct 19
ICN
Seoul
EVV
Evansville
₩1,044,500 Roundtrip, found 1 day ago
₩1,044,500
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 7 from Seoul to Evansville, returning Sun, Oct 19, priced at ₩1,044,500 found 1 day ago
American Airlines
Mon, Sep 8 - Mon, Sep 29
ICN
Seoul
BMI
Bloomington
₩1,050,400 Roundtrip, just found
₩1,050,400
Roundtrip
just found
Select American Airlines flight, departing Mon, Sep 8 from Seoul to Bloomington, returning Mon, Sep 29, priced at ₩1,050,400 just found
Korean Air
Thu, Nov 13 - Sun, Nov 23
ICN
Seoul
STL
St. Louis
₩1,054,213 Roundtrip, found 4 days ago
₩1,054,213
Roundtrip
found 4 days ago
Select Korean Air flight, departing Thu, Nov 13 from Seoul to St. Louis, returning Sun, Nov 23, priced at ₩1,054,213 found 4 days ago
Japan Airlines
Thu, Sep 18 - Fri, Sep 26
GMP
Seoul
ORD
Chicago
₩1,168,910 Roundtrip, found 3 days ago
₩1,168,910
Roundtrip
found 3 days ago
Select Japan Airlines flight, departing Thu, Sep 18 from Seoul to Chicago, returning Fri, Sep 26, priced at ₩1,168,910 found 3 days ago
Alaska Airlines
Thu, Nov 27 - Fri, Dec 12
ICN
Seoul
STL
St. Louis
₩1,222,700 Roundtrip, found 10 hours ago
₩1,222,700
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Thu, Nov 27 from Seoul to St. Louis, returning Fri, Dec 12, priced at ₩1,222,700 found 10 hours 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.

Trending flights to Illinois

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Feb 5 - Mon, Feb 16
ICN
Seoul
STL
St. Louis
₩924,200 Roundtrip, found 1 day ago
₩924,200
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 5 from Seoul to St. Louis, returning Mon, Feb 16, priced at ₩924,200 found 1 day ago
*Available to Expedia members.