Flights to Southwest Illinois from Las Vegas - ￥26,690

View ￥26,690 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines from Las Vegas 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 Las Vegas to Southwest Illinois (LAS-STL)

Prices were available within the past 7 days and start at ￥26,690 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

*Available to Expedia members.