Alaska Airlines Flights from Santa Rosa to Ontario
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1 Passenger
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Lowest fares from Santa Rosa to Ontario
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One-way low-fare flights Santa Rosa to Ontario.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Apr 8, 2026 | From $69 Seen: 1 day ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Mar 31, 2026 | From $69 Seen: 14 hours ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Apr 4, 2026 | From $69 Seen: 1 hour ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Apr 11, 2026 | From $79 Seen: 1 day ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Apr 3, 2026 | From $89 Seen: 15 hours ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Mar 30, 2026 | From $89 Seen: 1 day ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Apr 27, 2026 | From $109 Seen: 10 hours ago | |
| Santa Rosa (STS) | Ontario (ONT) | One-way | Saver | Depart: Mar 21, 2026 | From $139 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.