American Airlines flights from St George to Ontario

Recent searches for flights from St George to Ontario

Aug 2026
From$410*
Updated: 52 minutes ago
Round tripIEconomy
Sep 2026
From$321*
Updated: 52 minutes ago
Round tripIEconomy
Oct 2026
From$312*
Updated: 52 minutes ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $357
cmp-daily-histogram-bars-legend-max-price-aria-label $771
Displaying fares for August-2026
  • SGU–ONT, 08/13/26 – 08/20/26: From $560
    13

    Th

    AUG

  • SGU–ONT, 08/14/26 – 08/21/26: From $510
    14

    Fr

  • SGU–ONT, 08/15/26 – 08/22/26: From $434
    15

    Sa

  • SGU–ONT, 08/16/26 – 08/23/26: From $536
    16

    Su

  • SGU–ONT, 08/17/26 – 08/24/26: From $510
    17

    Mo

  • SGU–ONT, 08/18/26 – 08/25/26: From $434
    18

    Tu

  • SGU–ONT, 08/19/26 – 08/26/26: From $434
    19

    We

  • SGU–ONT, 08/20/26 – 08/27/26: From $536
    20

    Th

  • SGU–ONT, 08/21/26 – 08/28/26: From $504
    21

    Fr

  • SGU–ONT, 08/22/26 – 08/29/26: From $434
    22

    Sa

  • SGU–ONT, 08/23/26 – 08/30/26: From $718
    23

    Su

  • SGU–ONT, 08/24/26 – 08/31/26: From $528
    24

    Mo

  • SGU–ONT, 08/25/26 – 09/01/26: From $434
    25

    Tu

  • SGU–ONT, 08/26/26 – 09/02/26: From $410
    26

    We

  • SGU–ONT, 08/27/26 – 09/03/26: From $478
    27

    Th

  • SGU–ONT, 08/28/26 – 09/04/26: From $504
    28

    Fr

  • SGU–ONT, 08/29/26 – 09/05/26: From $478
    29

    Sa

  • SGU–ONT, 08/30/26 – 09/06/26: From $559
    30

    Su

  • SGU–ONT, 08/31/26 – 09/07/26: From $416
    31

    Mo

  • SGU–ONT, 09/01/26 – 09/08/26: From $357
    01

    Tu

    SEP

  • SGU–ONT, 09/02/26 – 09/09/26: From $357
    02

    We

  • SGU–ONT, 09/03/26 – 09/10/26: From $357
    03

    Th

  • SGU–ONT, 09/04/26 – 09/11/26: From $376
    04

    Fr

  • SGU–ONT, 09/05/26 – 09/12/26: From $376
    05

    Sa

  • SGU–ONT, 09/06/26 – 09/13/26: From $771
    06

    Su

  • SGU–ONT, 09/07/26 – 09/14/26: From $560
    07

    Mo

  • SGU–ONT, 09/08/26 – 09/15/26: From $438
    08

    Tu

  • SGU–ONT, 09/09/26 – 09/16/26: From $366
    09

    We

  • SGU–ONT: cmp-view-offers-disclaimer. Find Offers
    10

    Th

  • SGU–ONT: cmp-view-offers-disclaimer. Find Offers
    11

    Fr

  • SGU–ONT, 09/12/26 – 09/19/26: From $366
    12

    Sa

    • range$357-$771

    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 St George to Ontario flights

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    keyboard_arrow_down

    St George (SGU)to

    Ontario (ONT)
    10/23/26 - 10/30/26

    Round trip

    Economy

    from
    $312Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/01/26 - 10/08/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    10/08/26 - 10/15/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes ago

    St George (SGU)to

    Ontario (ONT)
    09/15/26 - 09/22/26

    Round trip

    Economy

    from
    $321Fare subject to changes
    Updated: 52 minutes 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 St George to Ontario

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