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

Return flights

01 Oct - 11 Oct	Air India
01 Oct - 07 Oct	Air India
15 Oct - 01 Nov	Air India
14 Oct - 21 Oct	Air India
01 Oct - 14 Oct	Air India
13 Oct - 18 Oct	Air India
07 Oct - 13 Oct	Air India
13 Oct - 21 Oct	Air India
27 Oct - 10 Nov	Air India
07 Oct - 21 Oct	Air India
01 Oct - 18 Oct	Air India
05 Oct - 14 Oct	Air India
27 Oct - 11 Nov	Lufthansa
27 Oct - 08 Nov	Air India
30 Oct - 21 Nov	Scandinavian Airlines
27 Oct - 07 Nov	Air India
30 Oct - 14 Nov	Scandinavian Airlines
31 Oct - 14 Nov	Scandinavian Airlines
20 Oct - 01 Nov	Air India
20 Oct - 03 Nov	Air India

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 551€

Return flights