American Airlines flights from Chicago to Missoula

Recent searches for flights from Chicago to Missoula

Aug 2026
From$444*
Updated: 3 hours ago
Round tripIEconomy
Sep 2026
From$384*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$319*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $444
cmp-daily-histogram-bars-legend-max-price-aria-label $876
Displaying fares for August-2026
  • ORD–MSO: cmp-view-offers-disclaimer. Find Offers
    21

    Fr

    AUG

  • ORD–MSO, 08/22/26 – 08/29/26: From $529
    22

    Sa

  • ORD–MSO, 08/23/26 – 08/30/26: From $505
    23

    Su

  • ORD–MSO, 08/24/26 – 08/31/26: From $495
    24

    Mo

  • ORD–MSO, 08/25/26 – 09/01/26: From $495
    25

    Tu

  • ORD–MSO, 08/26/26 – 09/02/26: From $539
    26

    We

  • ORD–MSO, 08/27/26 – 09/03/26: From $529
    27

    Th

  • ORD–MSO, 08/28/26 – 09/04/26: From $444
    28

    Fr

  • ORD–MSO, 08/29/26 – 09/05/26: From $444
    29

    Sa

  • ORD–MSO, 08/30/26 – 09/06/26: From $469
    30

    Su

  • ORD–MSO, 08/31/26 – 09/07/26: From $663
    31

    Mo

  • ORD–MSO, 09/01/26 – 09/08/26: From $671
    01

    Tu

    SEP

  • ORD–MSO, 09/02/26 – 09/09/26: From $619
    02

    We

  • ORD–MSO, 09/03/26 – 09/10/26: From $750
    03

    Th

  • ORD–MSO, 09/04/26 – 09/11/26: From $712
    04

    Fr

  • ORD–MSO, 09/05/26 – 09/12/26: From $682
    05

    Sa

  • ORD–MSO, 09/06/26 – 09/13/26: From $692
    06

    Su

  • ORD–MSO, 09/07/26 – 09/14/26: From $803
    07

    Mo

  • ORD–MSO, 09/08/26 – 09/15/26: From $585
    08

    Tu

  • ORD–MSO, 09/09/26 – 09/16/26: From $679
    09

    We

  • ORD–MSO, 09/10/26 – 09/17/26: From $735
    10

    Th

  • ORD–MSO, 09/11/26 – 09/18/26: From $793
    11

    Fr

  • ORD–MSO, 09/12/26 – 09/19/26: From $723
    12

    Sa

  • ORD–MSO, 09/13/26 – 09/20/26: From $876
    13

    Su

  • ORD–MSO, 09/14/26 – 09/21/26: From $743
    14

    Mo

  • ORD–MSO, 09/15/26 – 09/22/26: From $549
    15

    Tu

  • ORD–MSO, 09/16/26 – 09/23/26: From $641
    16

    We

  • ORD–MSO, 09/17/26 – 09/24/26: From $716
    17

    Th

  • ORD–MSO: cmp-view-offers-disclaimer. Find Offers
    18

    Fr

  • ORD–MSO: cmp-view-offers-disclaimer. Find Offers
    19

    Sa

  • ORD–MSO: cmp-view-offers-disclaimer. Find Offers
    20

    Su

    • range$444-$876

    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 Chicago to Missoula flights

    $
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    Chicago (ORD)to

    Missoula (MSO)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

    Missoula (MSO)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

    Missoula (MSO)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

    Missoula (MSO)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

    Missoula (MSO)
    11/06/26 - 11/13/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

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

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

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

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 hours ago

    Chicago (ORD)to

    Missoula (MSO)
    10/26/26 - 11/02/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 3 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 Chicago to Missoula

    Looking for lower fares on your trip from Chicago 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

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    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 Chicago to Missoula