Flights to Southwest Illinois from Los Angeles - ￥21,600

View ￥21,600 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Los Angeles to Southwest Illinois

  • Peach

    Peach

  • Skymark Airlines

    Skymark Airlines

  • All Nippon Airways

    All Nippon Airways

  • Japan Airlines

    Japan Airlines

  • Jetstar Japan

    Jetstar Japan

  • Solaseed Air

    Solaseed Air

  • STARFLYER

    STARFLYER

  • 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 40% 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 Los Angeles to Southwest Illinois (QLA-STL)

Prices were available within the past 7 days and start at ￥21,600 for one-way flights and ￥44,960 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Aug 27 - Sat, Aug 30
LAX
Los Angeles
STL
St. Louis
￥44,960 Roundtrip, found 1 day ago
￥44,960
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Aug 27 from Los Angeles to St. Louis, returning Sat, Aug 30, priced at ￥44,960 found 1 day ago
American Airlines
Sat, Aug 16 - Fri, Aug 22
LAX
Los Angeles
STL
St. Louis
￥45,460 Roundtrip, found 3 days ago
￥45,460
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 16 from Los Angeles to St. Louis, returning Fri, Aug 22, priced at ￥45,460 found 3 days ago
American Airlines
Wed, Aug 27 - Sat, Aug 30
LAX
Los Angeles
STL
St. Louis
￥45,870 Roundtrip, found 1 day ago
￥45,870
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Aug 27 from Los Angeles to St. Louis, returning Sat, Aug 30, priced at ￥45,870 found 1 day ago
Delta
Wed, Aug 27 - Sat, Aug 30
LAX
Los Angeles
STL
St. Louis
￥45,980 Roundtrip, found 1 day ago
￥45,980
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 27 from Los Angeles to St. Louis, returning Sat, Aug 30, priced at ￥45,980 found 1 day ago
United
Fri, Aug 15 - Wed, Aug 20
SNA
Orange County
STL
St. Louis
￥60,310 Roundtrip, found 5 hours ago
￥60,310
Roundtrip
found 5 hours ago
Select United flight, departing Fri, Aug 15 from Orange County to St. Louis, returning Wed, Aug 20, priced at ￥60,310 found 5 hours ago
Hawaiian Airlines
Sat, Jul 26 - Wed, Aug 6
SNA
Orange County
STL
St. Louis
￥83,150 Roundtrip, found 2 days ago
￥83,150
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Jul 26 from Orange County to St. Louis, returning Wed, Aug 6, priced at ￥83,150 found 2 days ago
*Available to Expedia members.