AirHint found the following cheapest return flights from London (LGW) to Seoul (GMP) in October 2025 (see full year).

Return flights

02 Oct - 17 Oct	Air China
02 Oct - 15 Oct	Air China
01 Oct - 15 Oct	Air China
01 Oct - 05 Oct	China Eastern
03 Oct - 19 Oct	China Eastern
02 Oct - 11 Oct	Air China
20 Oct - 27 Oct	Wizz Air UK
02 Oct - 16 Oct	Air China
05 Oct - 15 Oct	Air China
14 Oct - 18 Oct	Air China
20 Oct - 03 Nov	Wizz Air UK
31 Oct - 12 Nov	Turkish Airlines
01 Oct - 29 Nov	China Eastern
30 Oct - 15 Nov	China Eastern
30 Oct - 23 Nov	China Eastern
27 Oct - 08 Nov	China Eastern
31 Oct - 15 Nov	China Eastern
01 Oct - 06 Nov	China Eastern
30 Oct - 13 Nov	China Eastern
29 Oct - 13 Nov	China Eastern

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

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 October from 561€

Return flights