American Airlines flights from Phoenix to Saint Louis

Recent searches for flights from Phoenix to Saint Louis

Sep 2026
From$440*
Updated: 13 hours ago
Round tripIEconomy
Oct 2026
From$279*
Updated: 13 hours ago
Round tripIEconomy
Nov 2026
From$279*
Updated: 13 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $279
cmp-daily-histogram-bars-legend-max-price-aria-label $693
Displaying fares for September-2026
  • PHX–STL: cmp-view-offers-disclaimer. Find Offers
    16

    We

    SEP

  • PHX–STL, 09/17/26 – 09/23/26: From $626
    17

    Th

  • PHX–STL, 09/18/26 – 09/20/26: From $665
    18

    Fr

  • PHX–STL, 09/19/26 – 09/23/26: From $587
    19

    Sa

  • PHX–STL, 09/20/26 – 09/27/26: From $693
    20

    Su

  • PHX–STL, 09/21/26 – 09/28/26: From $693
    21

    Mo

  • PHX–STL, 09/22/26 – 09/26/26: From $587
    22

    Tu

  • PHX–STL, 09/23/26 – 09/29/26: From $587
    23

    We

  • PHX–STL, 09/24/26 – 09/27/26: From $665
    24

    Th

  • PHX–STL, 09/25/26 – 09/27/26: From $665
    25

    Fr

  • PHX–STL, 09/26/26 – 10/03/26: From $601
    26

    Sa

  • PHX–STL, 09/27/26 – 10/04/26: From $691
    27

    Su

  • PHX–STL, 09/28/26 – 10/05/26: From $561
    28

    Mo

  • PHX–STL, 09/29/26 – 10/06/26: From $440
    29

    Tu

  • PHX–STL, 09/30/26 – 10/07/26: From $470
    30

    We

  • PHX–STL, 10/01/26 – 10/08/26: From $631
    01

    Th

    OCT

  • PHX–STL, 10/02/26 – 10/09/26: From $631
    02

    Fr

  • PHX–STL, 10/03/26 – 10/10/26: From $556
    03

    Sa

  • PHX–STL, 10/04/26 – 10/11/26: From $631
    04

    Su

  • PHX–STL, 10/05/26 – 10/16/26: From $356
    05

    Mo

  • PHX–STL, 10/06/26 – 10/13/26: From $279
    06

    Tu

  • PHX–STL, 10/07/26 – 10/14/26: From $279
    07

    We

  • PHX–STL, 10/08/26 – 10/15/26: From $360
    08

    Th

  • PHX–STL, 10/09/26 – 10/16/26: From $361
    09

    Fr

  • PHX–STL, 10/10/26 – 10/17/26: From $309
    10

    Sa

  • PHX–STL, 10/11/26 – 10/18/26: From $547
    11

    Su

  • PHX–STL, 10/12/26 – 10/19/26: From $403
    12

    Mo

  • PHX–STL, 10/13/26 – 10/20/26: From $279
    13

    Tu

  • PHX–STL: cmp-view-offers-disclaimer. Find Offers
    14

    We

  • PHX–STL, 10/15/26 – 10/18/26: From $411
    15

    Th

    • range$279-$693

    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 Phoenix to Saint Louis flights

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    Phoenix (PHX)to

    Saint Louis (STL)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Phoenix (PHX)to

    Saint Louis (STL)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 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.

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