American Airlines flights from Ontario to Flagstaff

Recent searches for flights from Ontario to Flagstaff

Aug 2026
From$506*
Updated: 5 hours ago
Round tripIEconomy
Sep 2026
From$424*
Updated: 5 hours ago
Round tripIEconomy
Oct 2026
From$424*
Updated: 5 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $424
cmp-daily-histogram-bars-legend-max-price-aria-label $751
Displaying fares for August-2026
  • ONT–FLG, 08/16/26 – 08/23/26: From $566
    16

    Su

    AUG

  • ONT–FLG, 08/17/26 – 08/24/26: From $566
    17

    Mo

  • ONT–FLG, 08/18/26 – 08/25/26: From $506
    18

    Tu

  • ONT–FLG, 08/19/26 – 08/26/26: From $529
    19

    We

  • ONT–FLG, 08/20/26 – 08/27/26: From $649
    20

    Th

  • ONT–FLG, 08/21/26 – 08/28/26: From $680
    21

    Fr

  • ONT–FLG, 08/22/26 – 08/29/26: From $506
    22

    Sa

  • ONT–FLG, 08/23/26 – 08/30/26: From $566
    23

    Su

  • ONT–FLG, 08/24/26 – 08/31/26: From $618
    24

    Mo

  • ONT–FLG, 08/25/26 – 09/01/26: From $506
    25

    Tu

  • ONT–FLG, 08/26/26 – 09/02/26: From $506
    26

    We

  • ONT–FLG, 08/27/26 – 09/03/26: From $566
    27

    Th

  • ONT–FLG, 08/28/26 – 09/04/26: From $566
    28

    Fr

  • ONT–FLG, 08/29/26 – 09/05/26: From $506
    29

    Sa

  • ONT–FLG, 08/30/26 – 09/06/26: From $566
    30

    Su

  • ONT–FLG, 08/31/26 – 09/07/26: From $649
    31

    Mo

  • ONT–FLG, 09/01/26 – 09/08/26: From $594
    01

    Tu

    SEP

  • ONT–FLG, 09/02/26 – 09/09/26: From $506
    02

    We

  • ONT–FLG, 09/03/26 – 09/10/26: From $566
    03

    Th

  • ONT–FLG, 09/04/26 – 09/11/26: From $751
    04

    Fr

  • ONT–FLG, 09/05/26 – 09/12/26: From $506
    05

    Sa

  • ONT–FLG, 09/06/26 – 09/13/26: From $566
    06

    Su

  • ONT–FLG, 09/07/26 – 09/14/26: From $618
    07

    Mo

  • ONT–FLG, 09/08/26 – 09/15/26: From $465
    08

    Tu

  • ONT–FLG, 09/09/26 – 09/16/26: From $465
    09

    We

  • ONT–FLG, 09/10/26 – 09/17/26: From $525
    10

    Th

  • ONT–FLG, 09/11/26 – 09/18/26: From $566
    11

    Fr

  • ONT–FLG, 09/12/26 – 09/19/26: From $506
    12

    Sa

  • ONT–FLG: cmp-view-offers-disclaimer. Find Offers
    13

    Su

  • ONT–FLG: cmp-view-offers-disclaimer. Find Offers
    14

    Mo

  • ONT–FLG, 09/15/26 – 09/22/26: From $424
    15

    Tu

    • range$424-$751

    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 Ontario to Flagstaff flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    Flagstaff (FLG)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    09/16/26 - 09/23/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    09/26/26 - 10/03/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 hours ago

    Ontario (ONT)to

    Flagstaff (FLG)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $424Fare subject to changes
    Updated: 5 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 Ontario to Flagstaff

    Looking for lower fares on your trip from Ontario to Flagstaff? 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 Ontario to Flagstaff