Alaska Airlines Flights from London to Seattle
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1 Passenger
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Lowest fares from London to Seattle
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One-way low-fare flights London to Seattle.*
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From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Nov 15, 2026 | From $572 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 27, 2026 | From $572 Seen: 1 day ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 20, 2026 | From $495 Seen: 14 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 14, 2026 | From $513 Seen: 6 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 8, 2026 | From $513 Seen: 17 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 29, 2026 | From $513 Seen: 4 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 22, 2026 | From $513 Seen: 17 hours ago | |
| London (LHR) | Seattle (SEA) | One-way | Saver | Depart: Sep 21, 2026 | From $513 Seen: 17 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.