American Airlines flights from Saint Louis to Las Vegas

Recent searches for flights from Saint Louis to Las Vegas

Sep 2026
From$415*
Updated: 2 hours ago
Round tripIEconomy
Oct 2026
From$319*
Updated: 2 hours ago
Round tripIEconomy
Nov 2026
From$319*
Updated: 2 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $319
cmp-daily-histogram-bars-legend-max-price-aria-label $681
Displaying fares for September-2026
  • STL–LAS, 09/14/26 – 09/21/26: From $543
    14

    Mo

    SEP

  • STL–LAS, 09/15/26 – 09/22/26: From $415
    15

    Tu

  • STL–LAS, 09/16/26 – 09/23/26: From $415
    16

    We

  • STL–LAS, 09/17/26 – 09/24/26: From $543
    17

    Th

  • STL–LAS, 09/18/26 – 09/25/26: From $543
    18

    Fr

  • STL–LAS, 09/19/26 – 09/26/26: From $415
    19

    Sa

  • STL–LAS, 09/20/26 – 09/27/26: From $595
    20

    Su

  • STL–LAS, 09/21/26 – 09/28/26: From $543
    21

    Mo

  • STL–LAS, 09/22/26 – 09/29/26: From $433
    22

    Tu

  • STL–LAS, 09/23/26 – 09/30/26: From $415
    23

    We

  • STL–LAS, 09/24/26 – 10/01/26: From $543
    24

    Th

  • STL–LAS, 09/25/26 – 10/02/26: From $543
    25

    Fr

  • STL–LAS, 09/26/26 – 10/03/26: From $415
    26

    Sa

  • STL–LAS, 09/27/26 – 10/04/26: From $595
    27

    Su

  • STL–LAS, 09/28/26 – 10/05/26: From $543
    28

    Mo

  • STL–LAS, 09/29/26 – 10/06/26: From $415
    29

    Tu

  • STL–LAS, 09/30/26 – 10/07/26: From $415
    30

    We

  • STL–LAS, 10/01/26 – 10/08/26: From $560
    01

    Th

    OCT

  • STL–LAS, 10/02/26 – 10/09/26: From $543
    02

    Fr

  • STL–LAS, 10/03/26 – 10/10/26: From $415
    03

    Sa

  • STL–LAS, 10/04/26 – 10/11/26: From $681
    04

    Su

  • STL–LAS, 10/05/26 – 10/12/26: From $441
    05

    Mo

  • STL–LAS, 10/06/26 – 10/13/26: From $319
    06

    Tu

  • STL–LAS, 10/07/26 – 10/14/26: From $319
    07

    We

  • STL–LAS, 10/08/26 – 10/15/26: From $363
    08

    Th

  • STL–LAS, 10/09/26 – 10/16/26: From $409
    09

    Fr

  • STL–LAS, 10/10/26 – 10/17/26: From $319
    10

    Sa

  • STL–LAS, 10/11/26 – 10/18/26: From $568
    11

    Su

  • STL–LAS, 10/12/26 – 10/17/26: From $460
    12

    Mo

  • STL–LAS, 10/13/26 – 10/16/26: From $364
    13

    Tu

    • range$319-$681

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Saint Louis to Las Vegas flights

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    Saint Louis (STL)to

    Las Vegas (LAS)
    12/05/26 - 12/12/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    11/24/26 - 12/01/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    11/25/26 - 12/02/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    Saint Louis (STL)to

    Las Vegas (LAS)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 2 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Saint Louis to Las Vegas

    Looking for lower fares on your trip from Saint Louis to Las Vegas? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

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    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Saint Louis to Las Vegas