AirHint found the following cheapest return flights from Seoul (GMP) to London (LHR) in February 2026 (see full year).

Return flights

28 Feb - 07 Mar	Air China
28 Feb - 06 Mar	Air China
25 Feb - 06 Mar	Air China
01 Feb - 15 Feb	Air China
24 Feb - 31 Mar	Air China
24 Feb - 10 Mar	Air China
03 Feb - 09 Feb	Air China
03 Feb - 18 Feb	Air China
24 Feb - 05 Mar	Air China
19 Feb - 05 Mar	China Southern
06 Feb - 09 Feb	Air China
03 Feb - 17 Feb	Air China
03 Feb - 16 Feb	Air China
01 Feb - 10 Feb	Air China
01 Feb - 28 Feb	Air China
28 Feb - 03 Mar	Air China
28 Feb - 01 Mar	Air China
26 Feb - 07 Mar	Air China
05 Feb - 17 Feb	Air China
05 Feb - 07 Feb	Air China

Also check the deals for one-way flights from Seoul to London in February.

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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Cheapest return flights from Seoul to London in February from 618€

Return flights