Cheap flights from Incheon to Southern Illinois

View AU$1,033 flight on Fri, 12 Sep. 2025Opens in a new window

Popular airlines from Incheon to Southern Illinois

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Incheon (SEL) to Southern Illinois (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$1,804 Return, found 4 days ago
AU$1,804
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$1,804 found 4 days ago
Delta
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$1,819 Return, found 4 days ago
AU$1,819
Return
found 4 days ago
Select Delta flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$1,819 found 4 days ago
Korean Air
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$1,912 Return, found 4 days ago
AU$1,912
Return
found 4 days ago
Select Korean Air flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$1,912 found 4 days ago
United
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$1,936 Return, found 4 days ago
AU$1,936
Return
found 4 days ago
Select United flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$1,936 found 4 days ago
Air Canada
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$1,995 Return, found 4 days ago
AU$1,995
Return
found 4 days ago
Select Air Canada flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$1,995 found 4 days ago
Lufthansa
Tue, 29 Jul. - Sat, 2 Aug.
ICN
Seoul
STL
St. Louis
AU$5,494 Return, found 4 days ago
AU$5,494
Return
found 4 days ago
Select Lufthansa flight, departing Tue, 29 Jul. from Seoul to St. Louis, returning Sat, 2 Aug., priced at AU$5,494 found 4 days ago
*Available to Expedia members.