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

Return flights

19 Jan - 26 Jan	China Eastern
29 Jan - 08 Feb	China Eastern
23 Jan - 22 Feb	China Eastern
20 Jan - 03 Feb	China Eastern
29 Jan - 03 Feb	China Eastern
29 Jan - 06 Feb	Air China
16 Jan - 20 Jan	China Eastern
22 Jan - 25 Jan	Air China
19 Jan - 06 Feb	China Eastern
20 Jan - 28 Jan	Air China
22 Jan - 01 Feb	Air China
28 Jan - 07 Feb	Air China
29 Jan - 09 Feb	Air China
23 Jan - 23 Feb	China Eastern
20 Jan - 23 Jan	Air China
11 Jan - 18 Jan	China Eastern
28 Jan - 30 Jan	Air China
09 Jan - 21 Jan	Air China
11 Jan - 21 Jan	Air China
15 Jan - 21 Jan	Air China

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

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 January from 400€

Return flights