Cheapest return flights from Seattle to London in January from 555€

Best time to book flights for Seattle (SEA) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to London (LGW) in January 2025 (see full year).

Return flights

20 Jan - 04 Feb Frontier Airlines
19 Jan - 04 Feb Spirit Airlines
13 Jan - 16 Jan Frontier Airlines
14 Jan - 21 Jan Spirit Airlines
13 Jan - 19 Feb Frontier Airlines
30 Jan - 07 Feb Icelandair
13 Jan - 20 Jan Frontier Airlines
30 Jan - 04 Feb Spirit Airlines
28 Jan - 09 Feb Spirit Airlines
31 Jan - 07 Feb Icelandair
25 Jan - 01 Feb Icelandair
24 Jan - 03 Feb Icelandair
23 Jan - 02 Feb Icelandair
09 Jan - 16 Jan Alaska Airlines
17 Jan - 21 Jan Turkish Airlines
11 Jan - 17 Jan Alaska Airlines
19 Jan - 26 Jan Turkish Airlines
06 Jan - 19 Jan Spirit Airlines
09 Jan - 13 Jan Frontier Airlines
17 Jan - 24 Jan Turkish Airlines

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

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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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