Cheapest return flights from Seattle to London in October from $756

AirHint found the following cheapest return flights from Seattle (SEA) to London (STN) in October 2026 (see full year).

Return flights

21 Oct - 04 Nov Turkish Airlines
29 Oct - 07 Nov Turkish Airlines
18 Oct - 01 Nov Turkish Airlines
30 Oct - 07 Nov Turkish Airlines

Also check the deals for one-way flights from Seattle to London in October.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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