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

Select a price to book. see full year.

Dates, airline, and price
Dates	Airline	Price
24 Oct	Alaska Airlines
06 Oct	Alaska Airlines
04 Oct	Alaska Airlines
17 Oct	Alaska Airlines
26 Oct	Icelandair
26 Oct	Virgin Atlantic Direct Flight
25 Oct	Air France Direct Flight
28 Oct	Air France Direct Flight
17 Oct	Virgin Atlantic Direct Flight
24 Oct	Air France Direct Flight

deals for return flights from Seattle to London in October.

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Updated Jul 18, 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), October

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