American Airlines flights from Ontario to Portland, OR

Recent searches for flights from Ontario to Portland, OR

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Mar 2026
No results available
Apr 2026
From$400*
Updated: 8 hours ago
Round tripIEconomy
May 2026
From$343*
Updated: 8 hours ago
Round tripIEconomy
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    • 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 Portland, OR flights

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    Ontario (ONT)to

    Portland, OR (PDX)
    09/06/26 - 09/09/26

    Round trip

    Economy

    from
    $259Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    05/04/26 - 05/06/26

    Round trip

    Economy

    from
    $343Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    05/20/26 - 05/24/26

    Round trip

    Economy

    from
    $359Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    04/13/26 - 04/15/26

    Round trip

    Economy

    from
    $400Fare subject to changes
    Updated: 8 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    06/25/26 - 06/29/26

    Round trip

    Economy

    from
    $675Fare subject to changes
    Updated: 14 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    10/09/26 - 10/12/26

    Round trip

    Economy

    from
    $738Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Portland, OR (PDX)
    06/26/26 - 06/28/26

    Round trip

    Economy

    from
    $808Fare subject to changes
    Updated: 10 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.

    American Airlines flights from Ontario to Portland, OR

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