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

Return flights

04 Jan - 24 Jan	Air China
02 Jan - 22 Jan	Air China
10 Jan - 15 Jan	China Eastern
04 Jan - 10 Jan	China Eastern
10 Jan - 22 Jan	China Eastern
05 Jan - 19 Jan	China Eastern
14 Jan - 28 Jan	China Eastern
07 Jan - 21 Jan	China Eastern
10 Jan - 25 Jan	China Eastern
10 Jan - 30 Jan	China Eastern
19 Jan - 05 Feb	China Eastern
24 Jan - 07 Feb	China Eastern

Also check the deals for one-way flights from London to Seoul 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 London to Seoul in January from 625€

Return flights