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Cheapest one-way flights from Seattle (SEA) to London (LHR), June

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Dates, airline, and price
Dates	Airline	Price
04 Jun	Alaska Airlines
06 Jun	Air France Direct Flight
06 Jun	Aer Lingus
05 Jun	Alaska Airlines
10 Jun	Air Canada
10 Jun	Virgin Atlantic Direct Flight
04 Jun	British Airways Direct Flight
05 Jun	British Airways Direct Flight

deals for return flights from Seattle to London in June.

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Updated Jul 17, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Seattle (SEA) to London (LHR), June

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