American Airlines flights from San Antonio to Ontario

Recent searches for flights from San Antonio to Ontario

Sep 2026
From$425*
Updated: 53 minutes ago
Round tripIEconomy
Oct 2026
From$293*
Updated: 53 minutes ago
Round tripIEconomy
Nov 2026
From$293*
Updated: 53 minutes 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
  • SAT–ONT, 09/15/26 – 09/22/26: From $997
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  • SAT–ONT, 09/16/26 – 09/23/26: From $997
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  • SAT–ONT, 09/17/26 – 09/28/26: From $816
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  • SAT–ONT, 09/18/26 – 09/25/26: From $997
    18

    Fr

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

    Sa

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

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  • SAT–ONT, 09/21/26 – 09/28/26: From $997
    21

    Mo

  • SAT–ONT, 09/22/26 – 09/29/26: From $782
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  • SAT–ONT, 09/23/26 – 09/30/26: From $782
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  • SAT–ONT, 09/24/26 – 10/01/26: From $782
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  • SAT–ONT, 09/25/26 – 10/02/26: From $782
    25

    Fr

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

    Sa

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

    Su

  • SAT–ONT, 09/28/26 – 09/29/26: From $537
    28

    Mo

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

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

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  • SAT–ONT, 10/01/26 – 10/08/26: From $446
    01

    Th

    OCT

  • SAT–ONT, 10/02/26 – 10/09/26: From $466
    02

    Fr

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

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

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

    Mo

  • SAT–ONT, 10/06/26 – 10/13/26: From $314
    06

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

    We

  • SAT–ONT, 10/08/26 – 10/14/26: From $447
    08

    Th

  • SAT–ONT, 10/09/26 – 10/16/26: From $436
    09

    Fr

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

    Sa

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

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

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

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    • 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 San Antonio to Ontario flights

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    San Antonio (SAT)to

    Ontario (ONT)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 minutes ago

    San Antonio (SAT)to

    Ontario (ONT)
    11/24/26 - 12/01/26

    Round trip

    Economy

    from
    $293Fare subject to changes
    Updated: 53 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 San Antonio to Ontario

    Looking for lower fares on your trip from San Antonio 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

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    American Airlines flights from San Antonio to Ontario