Alaska Airlines Flights from Petersburg to Seattle
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1 Passenger
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Lowest fares from Petersburg to Seattle
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One-way low-fare flights Petersburg to Seattle.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 11, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 15, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 17, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 27, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 28, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 29, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Mar 31, 2026 | From $223 Seen: 3 hours ago | |
| Petersburg (PSG) | Seattle (SEA) | One-way | Saver | Depart: Apr 3, 2026 | From $223 Seen: 3 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.