Alaska Airlines Flights from Ontario to Santa Rosa

Lowest fares from Ontario to Santa Rosa

Apr 2026
From$169*
Seen: 15 hours ago
Flight Type One Way|Saver
May 2026
From$79*
Seen: 1 day ago
Flight Type One Way|Saver
Jun 2026
From$79*
Seen: 1 day ago
Flight Type One Way|Saver
$169
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    • Range$169-$757

    *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 Ontario to Santa Rosa.*

    $
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    One-way low-fare flights Ontario to Santa Rosa.*
    From
    To
    Fare Type
    Dates
    Price
    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: May 31, 2026

    From

    $119

    Seen: 12 hours ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: May 19, 2026

    From

    $79

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jun 3, 2026

    From

    $79

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jun 9, 2026

    From

    $79

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: May 30, 2026

    From

    $79

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jun 4, 2026

    From

    $119

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jun 5, 2026

    From

    $119

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: May 29, 2026

    From

    $119

    Seen: 1 day 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.