Alaska Airlines Flights from Petersburg to Ontario
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1 Passenger
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Lowest fares from Petersburg to Ontario
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One-way low-fare flights Petersburg to Ontario.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Mar 16, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Jan 11, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Jan 21, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Jan 24, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Jan 29, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Feb 4, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Feb 17, 2026 | From $271 Seen: 9 hours ago | |
| Petersburg (PSG) | Ontario (ONT) | One-way | Saver | Depart: Feb 20, 2026 | From $271 Seen: 9 hours 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.