Alaska Airlines Flights from Santa Rosa to Ontario

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Lowest fares from Santa Rosa to Ontario

*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 Santa Rosa to Ontario.*

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One-way low-fare flights Santa Rosa to Ontario.*
From
To
Fare Type
Dates
Price
Santa Rosa (STS)Ontario (ONT)One-way
|
Saver		Depart: Mar 27, 2026

From

$89

Seen: 1 day ago

Santa Rosa (STS)Ontario (ONT)One-way
|
Saver		Depart: Dec 26, 2025

From

$627

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.

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