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

Return flights

21 Oct - 04 Nov	Lufthansa
02 Oct - 18 Oct	Air China
02 Oct - 23 Oct	Air China
02 Oct - 11 Oct	Air China
19 Oct - 26 Oct	Lufthansa
20 Oct - 27 Oct	Lufthansa
03 Oct - 10 Oct	Air China
03 Oct - 17 Oct	Air China
03 Oct - 24 Oct	Air China
21 Oct - 30 Oct	Lufthansa
28 Oct - 05 Nov	Lufthansa
27 Oct - 30 Oct	Air China
26 Oct - 02 Nov	Air China
24 Oct - 01 Nov	Air China
14 Oct - 04 Nov	Lufthansa
19 Oct - 02 Nov	Lufthansa
23 Oct - 03 Nov	Austrian Airlines
06 Oct - 04 Nov	Pegasus Airlines
16 Oct - 01 Nov	Pegasus Airlines
13 Oct - 02 Nov	Scandinavian Airlines

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 499€

Return flights