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

Return flights

24 Oct - 31 Oct	Air China
16 Oct - 23 Oct	Air China
27 Oct - 03 Nov	Air China
23 Oct - 03 Nov	Air China
12 Oct - 16 Oct	Air China
06 Oct - 28 Oct	Air China
04 Oct - 15 Oct	Air China
09 Oct - 16 Oct	Air China
03 Oct - 12 Oct	EVA Air
02 Oct - 11 Oct	EVA Air
03 Oct - 11 Oct	EVA Air
03 Oct - 08 Oct	EVA Air

Also check the deals for one-way flights from Seoul to London 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 Seoul to London in October from $744

Return flights