American Airlines flights from Ontario to San Antonio

Recent searches for flights from Ontario to San Antonio

Sep 2026
From$425*
Updated: 9 hours ago
Round tripIEconomy
Oct 2026
From$293*
Updated: 9 hours ago
Round tripIEconomy
Nov 2026
From$293*
Updated: 9 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $293
cmp-daily-histogram-bars-legend-max-price-aria-label $997
Displaying fares for September-2026
  • ONT–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Tu

    SEP

  • ONT–SAT, 09/16/26 – 09/23/26: From $997
    16

    We

  • ONT–SAT, 09/17/26 – 09/24/26: From $997
    17

    Th

  • ONT–SAT, 09/18/26 – 09/25/26: From $997
    18

    Fr

  • ONT–SAT, 09/19/26 – 09/26/26: From $997
    19

    Sa

  • ONT–SAT, 09/20/26 – 09/27/26: From $997
    20

    Su

  • ONT–SAT, 09/21/26 – 09/28/26: From $782
    21

    Mo

  • ONT–SAT, 09/22/26 – 09/29/26: From $782
    22

    Tu

  • ONT–SAT, 09/23/26 – 09/30/26: From $782
    23

    We

  • ONT–SAT, 09/24/26 – 10/01/26: From $782
    24

    Th

  • ONT–SAT, 09/25/26 – 10/02/26: From $782
    25

    Fr

  • ONT–SAT, 09/26/26 – 10/03/26: From $782
    26

    Sa

  • ONT–SAT, 09/27/26 – 10/04/26: From $782
    27

    Su

  • ONT–SAT, 09/28/26 – 10/05/26: From $446
    28

    Mo

  • ONT–SAT, 09/29/26 – 10/06/26: From $425
    29

    Tu

  • ONT–SAT, 09/30/26 – 10/07/26: From $425
    30

    We

  • ONT–SAT, 10/01/26 – 10/08/26: From $581
    01

    Th

    OCT

  • ONT–SAT, 10/02/26 – 10/09/26: From $581
    02

    Fr

  • ONT–SAT, 10/03/26 – 10/10/26: From $425
    03

    Sa

  • ONT–SAT, 10/04/26 – 10/11/26: From $517
    04

    Su

  • ONT–SAT, 10/05/26 – 10/12/26: From $335
    05

    Mo

  • ONT–SAT, 10/06/26 – 10/13/26: From $293
    06

    Tu

  • ONT–SAT, 10/07/26 – 10/14/26: From $293
    07

    We

  • ONT–SAT, 10/08/26 – 10/15/26: From $335
    08

    Th

  • ONT–SAT, 10/09/26 – 10/16/26: From $375
    09

    Fr

  • ONT–SAT, 10/10/26 – 10/17/26: From $293
    10

    Sa

  • ONT–SAT, 10/11/26 – 10/18/26: From $467
    11

    Su

  • ONT–SAT, 10/12/26 – 10/19/26: From $335
    12

    Mo

  • ONT–SAT, 10/13/26 – 10/16/26: From $334
    13

    Tu

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

    We

    • range$293-$997

    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 San Antonio flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    San Antonio (SAT)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 hours ago

    Ontario (ONT)to

    San Antonio (SAT)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 9 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 San Antonio

    Looking for lower fares on your trip from Ontario to San Antonio? 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

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    • 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 San Antonio