Alaska Airlines Flights from Petersburg to Ontario

Lowest fares from Petersburg to Ontario

Mar 2026
From$418*
Seen: 20 hours ago
Flight Type One Way|Saver
Apr 2026
From$302*
Seen: 20 hours ago
Flight Type One Way|Saver
May 2026
From$302*
Seen: 20 hours ago
Flight Type One Way|Saver
$302
$609
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    • Range$302-$609

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Petersburg to Ontario.*

    $
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    One-way low-fare flights Petersburg to Ontario.*
    From
    To
    Fare Type
    Dates
    Price
    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 15, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: May 3, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 12, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 16, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 18, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 20, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 21, 2026

    From

    $302

    Seen: 20 hours ago

    Petersburg (PSG)Ontario (ONT)One-way
    |
    Saver    		Depart: Apr 26, 2026

    From

    $302

    Seen: 20 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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