Alaska Airlines Flights from Portland to Seattle
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1 Passenger
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Lowest fares from Portland to Seattle
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One-way low-fare flights Portland to Seattle.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Feb 7, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Feb 15, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Feb 16, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 9, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 10, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 11, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Mar 14, 2026 | From $70 Seen: 6 hours ago | |
| Portland (PDX) | Seattle (SEA) | One-way | Saver | Depart: Jan 31, 2026 | From $70 Seen: 6 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.