Alaska Airlines Flights from Ontario to Santa Rosa

Lowest fares from Ontario to Santa Rosa

Jul 2026
From$224*
Seen: 1 day ago
Flight Type One Way|Saver
Aug 2026
From$144*
Seen: 1 day ago
Flight Type One Way|Saver
Sep 2026
Try another month to see offers
cmp-daily-histogram-bars-legend-min-price-aria-label $144
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    • Range$144-$309

    *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.*

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

    From

    $144

    Seen: 1 hour ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jul 22, 2026

    From

    $309

    Seen: 7 hours ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Aug 7, 2026

    From

    $144

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Aug 6, 2026

    From

    $144

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Nov 26, 2026

    From

    $210

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jul 26, 2026

    From

    $224

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jul 27, 2026

    From

    $224

    Seen: 1 day ago

    Ontario (ONT)Santa Rosa (STS)One-way
    |
    Saver    		Depart: Jul 18, 2026

    From

    $309

    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.