American Airlines flights from Ontario to St George

Recent searches for flights from Ontario to St George

Aug 2026
From$737*
Updated: 18 hours ago
Round tripIEconomy
Sep 2026
From$346*
Updated: 18 hours ago
Round tripIEconomy
Oct 2026
From$346*
Updated: 8 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $346
cmp-daily-histogram-bars-legend-max-price-aria-label $737
Displaying fares for August-2026
  • ONT–SGU, 08/31/26 – 09/07/26: From $737
    31

    Mo

    AUG

  • ONT–SGU, 09/01/26 – 09/08/26: From $625
    01

    Tu

  • ONT–SGU, 09/02/26 – 09/09/26: From $434
    02

    We

  • ONT–SGU, 09/03/26 – 09/10/26: From $510
    03

    Th

  • ONT–SGU, 09/04/26 – 09/11/26: From $737
    04

    Fr

  • ONT–SGU, 09/05/26 – 09/12/26: From $585
    05

    Sa

  • ONT–SGU, 09/06/26 – 09/13/26: From $478
    06

    Su

  • ONT–SGU, 09/07/26 – 09/14/26: From $478
    07

    Mo

  • ONT–SGU, 09/08/26 – 09/15/26: From $434
    08

    Tu

  • ONT–SGU, 09/09/26 – 09/16/26: From $512
    09

    We

  • ONT–SGU, 09/10/26 – 09/17/26: From $478
    10

    Th

  • ONT–SGU, 09/11/26 – 09/18/26: From $478
    11

    Fr

  • ONT–SGU, 09/12/26 – 09/19/26: From $434
    12

    Sa

  • ONT–SGU, 09/13/26 – 09/20/26: From $478
    13

    Su

  • ONT–SGU, 09/14/26 – 09/21/26: From $565
    14

    Mo

  • ONT–SGU, 09/15/26 – 09/22/26: From $410
    15

    Tu

  • ONT–SGU, 09/16/26 – 09/23/26: From $410
    16

    We

  • ONT–SGU, 09/17/26 – 09/24/26: From $416
    17

    Th

  • ONT–SGU, 09/18/26 – 09/25/26: From $535
    18

    Fr

  • ONT–SGU, 09/19/26 – 09/26/26: From $456
    19

    Sa

  • ONT–SGU, 09/20/26 – 09/27/26: From $416
    20

    Su

  • ONT–SGU, 09/21/26 – 09/28/26: From $422
    21

    Mo

  • ONT–SGU, 09/22/26 – 09/29/26: From $410
    22

    Tu

  • ONT–SGU, 09/23/26 – 09/30/26: From $366
    23

    We

  • ONT–SGU, 09/24/26 – 10/01/26: From $376
    24

    Th

  • ONT–SGU, 09/25/26 – 10/02/26: From $422
    25

    Fr

  • ONT–SGU, 09/26/26 – 10/03/26: From $376
    26

    Sa

  • ONT–SGU, 09/27/26 – 10/04/26: From $448
    27

    Su

  • ONT–SGU: cmp-view-offers-disclaimer. Find Offers
    28

    Mo

  • ONT–SGU: cmp-view-offers-disclaimer. Find Offers
    29

    Tu

  • ONT–SGU, 09/30/26 – 10/07/26: From $346
    30

    We

    • range$346-$737

    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 St George flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    St George (SGU)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    09/30/26 - 10/07/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 18 hours ago

    Ontario (ONT)to

    St George (SGU)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    11/24/26 - 12/01/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    St George (SGU)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $346Fare subject to changes
    Updated: 8 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 St George

    Looking for lower fares on your trip from Ontario to St George? 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 St George