American Airlines flights from Austin to Ontario

Recent searches for flights from Austin to Ontario

Sep 2026
From$404*
Updated: 2 hours ago
Round tripIEconomy
Oct 2026
From$291*
Updated: 2 hours ago
Round tripIEconomy
Nov 2026
From$291*
Updated: 2 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $291
cmp-daily-histogram-bars-legend-max-price-aria-label $570
Displaying fares for September-2026
  • AUS–ONT, 09/17/26 – 09/25/26: From $511
    17

    Th

    SEP

  • AUS–ONT, 09/18/26 – 09/25/26: From $511
    18

    Fr

  • AUS–ONT, 09/19/26 – 09/26/26: From $433
    19

    Sa

  • AUS–ONT, 09/20/26 – 09/23/26: From $485
    20

    Su

  • AUS–ONT, 09/21/26 – 09/28/26: From $570
    21

    Mo

  • AUS–ONT, 09/22/26 – 09/29/26: From $433
    22

    Tu

  • AUS–ONT, 09/23/26 – 09/30/26: From $433
    23

    We

  • AUS–ONT, 09/24/26 – 10/01/26: From $517
    24

    Th

  • AUS–ONT, 09/25/26 – 10/02/26: From $511
    25

    Fr

  • AUS–ONT, 09/26/26 – 10/03/26: From $433
    26

    Sa

  • AUS–ONT, 09/27/26 – 10/04/26: From $511
    27

    Su

  • AUS–ONT, 09/28/26 – 10/05/26: From $434
    28

    Mo

  • AUS–ONT, 09/29/26 – 10/06/26: From $404
    29

    Tu

  • AUS–ONT, 09/30/26 – 10/07/26: From $404
    30

    We

  • AUS–ONT, 10/01/26 – 10/08/26: From $474
    01

    Th

    OCT

  • AUS–ONT, 10/02/26 – 10/09/26: From $434
    02

    Fr

  • AUS–ONT, 10/03/26 – 10/06/26: From $349
    03

    Sa

  • AUS–ONT, 10/04/26 – 10/11/26: From $487
    04

    Su

  • AUS–ONT, 10/05/26 – 10/12/26: From $351
    05

    Mo

  • AUS–ONT, 10/06/26 – 10/13/26: From $291
    06

    Tu

  • AUS–ONT, 10/07/26 – 10/14/26: From $291
    07

    We

  • AUS–ONT, 10/08/26 – 10/15/26: From $391
    08

    Th

  • AUS–ONT, 10/09/26 – 10/16/26: From $351
    09

    Fr

  • AUS–ONT, 10/10/26 – 10/17/26: From $291
    10

    Sa

  • AUS–ONT, 10/11/26 – 10/18/26: From $417
    11

    Su

  • AUS–ONT, 10/12/26 – 10/19/26: From $391
    12

    Mo

  • AUS–ONT, 10/13/26 – 10/20/26: From $291
    13

    Tu

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

    We

  • AUS–ONT: cmp-view-offers-disclaimer. Find Offers
    15

    Th

  • AUS–ONT: cmp-view-offers-disclaimer. Find Offers
    16

    Fr

    • range$291-$570

    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 Austin to Ontario flights

    $
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    Austin (AUS)to

    Ontario (ONT)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

    Ontario (ONT)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

    Ontario (ONT)
    12/05/26 - 12/12/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

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

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

    Ontario (ONT)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

    Ontario (ONT)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

    Ontario (ONT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 hours ago

    Austin (AUS)to

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

    Round trip

    Economy

    from
    $291Fare subject to changes
    Updated: 2 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.

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