Alaska Airlines Flights from Ontario to Santa Rosa
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1 Passenger
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Lowest fares from Ontario to Santa Rosa
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One-way low-fare flights Ontario to Santa Rosa.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Ontario (ONT) | Santa Rosa (STS) | One-way | Saver | Depart: Apr 20, 2026 | From $99 Seen: 17 hours ago | |
| Ontario (ONT) | Santa Rosa (STS) | One-way | Saver | Depart: Apr 26, 2026 | From $129 Seen: 17 hours ago | |
| Ontario (ONT) | Santa Rosa (STS) | One-way | Saver | Depart: May 23, 2026 | From $392 Seen: 17 hours ago | |
| Ontario (ONT) | Santa Rosa (STS) | One-way | Saver | Depart: Dec 18, 2025 | From $471 Seen: 1 day ago | |
| Ontario (ONT) | Santa Rosa (STS) | One-way | Saver | Depart: Dec 10, 2025 | From $632 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.