Cheapest one-way flights from Seattle to London in February from $237

AirHint found the following cheapest one-way flights from Seattle (SEA) to London (STN) in February 2026 (see full year).

One-Way flights

25 Feb Icelandair
24 Feb Icelandair
23 Feb Icelandair
22 Feb KLM
16 Feb Icelandair
21 Feb Alaska Airlines
19 Feb KLM
20 Feb Lufthansa
11 Feb Air Canada
14 Feb Frontier Airlines

Also check the deals for return flights from Seattle to London in February.

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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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