American Airlines flights from Philadelphia to Missoula

Recent searches for flights from Philadelphia to Missoula

Sep 2026
From$474*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$399*
Updated: 7 hours ago
Round tripIEconomy
Nov 2026
From$399*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $474
cmp-daily-histogram-bars-legend-max-price-aria-label $2.4K
Displaying fares for September-2026
  • PHL–MSO: cmp-view-offers-disclaimer. Find Offers
    10

    Th

    SEP

  • PHL–MSO, 09/11/26 – 09/18/26: From $812
    11

    Fr

  • PHL–MSO, 09/12/26 – 09/19/26: From $789
    12

    Sa

  • PHL–MSO, 09/13/26 – 09/20/26: From $2,439
    13

    Su

  • PHL–MSO, 09/14/26 – 09/21/26: From $1,087
    14

    Mo

  • PHL–MSO, 09/15/26 – 09/22/26: From $674
    15

    Tu

  • PHL–MSO, 09/16/26 – 09/23/26: From $845
    16

    We

  • PHL–MSO, 09/17/26 – 09/24/26: From $1,110
    17

    Th

  • PHL–MSO, 09/18/26 – 09/25/26: From $923
    18

    Fr

  • PHL–MSO, 09/19/26 – 09/26/26: From $808
    19

    Sa

  • PHL–MSO, 09/20/26 – 09/27/26: From $1,826
    20

    Su

  • PHL–MSO, 09/21/26 – 09/28/26: From $942
    21

    Mo

  • PHL–MSO, 09/22/26 – 09/29/26: From $640
    22

    Tu

  • PHL–MSO, 09/23/26 – 09/30/26: From $640
    23

    We

  • PHL–MSO, 09/24/26 – 10/01/26: From $940
    24

    Th

  • PHL–MSO, 09/25/26 – 10/02/26: From $647
    25

    Fr

  • PHL–MSO, 09/26/26 – 10/03/26: From $474
    26

    Sa

  • PHL–MSO, 09/27/26 – 10/04/26: From $1,057
    27

    Su

  • PHL–MSO, 09/28/26 – 10/05/26: From $1,018
    28

    Mo

  • PHL–MSO, 09/29/26 – 10/06/26: From $693
    29

    Tu

  • PHL–MSO, 09/30/26 – 10/07/26: From $786
    30

    We

  • PHL–MSO, 10/01/26 – 10/08/26: From $787
    01

    Th

    OCT

  • PHL–MSO, 10/02/26 – 10/09/26: From $739
    02

    Fr

  • PHL–MSO, 10/03/26 – 10/10/26: From $683
    03

    Sa

  • PHL–MSO, 10/04/26 – 10/11/26: From $1,007
    04

    Su

  • PHL–MSO, 10/05/26 – 10/12/26: From $930
    05

    Mo

  • PHL–MSO, 10/06/26 – 10/13/26: From $825
    06

    Tu

  • PHL–MSO, 10/07/26 – 10/14/26: From $841
    07

    We

  • PHL–MSO: cmp-view-offers-disclaimer. Find Offers
    08

    Th

  • PHL–MSO: cmp-view-offers-disclaimer. Find Offers
    09

    Fr

    • range$474-$2,439

    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 Philadelphia to Missoula flights

    $
    keyboard_arrow_down

    Philadelphia (PHL)to

    Missoula (MSO)
    10/30/26 - 11/06/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    12/06/26 - 12/13/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    11/05/26 - 11/12/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Missoula (MSO)
    11/12/26 - 11/19/26

    Round trip

    Economy

    from
    $399Fare subject to changes
    Updated: 7 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 Philadelphia to Missoula

    Looking for lower fares on your trip from Philadelphia to Missoula? 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

    Citi / AAdvantage credit card offer.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Philadelphia to Missoula