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

Return flights

19 Oct - 26 Oct	Lufthansa
20 Oct - 29 Oct	Lufthansa
20 Oct - 28 Oct	Lufthansa
20 Oct - 26 Oct	Lufthansa
27 Oct - 08 Nov	Lufthansa
18 Oct - 24 Oct	Air China
28 Oct - 07 Nov	Air China
21 Oct - 28 Oct	SWISS
20 Oct - 27 Oct	Lufthansa
12 Oct - 01 Nov	Air China
14 Oct - 24 Oct	Air China
15 Oct - 22 Oct	Air China
13 Oct - 17 Oct	Air China
25 Oct - 10 Nov	Air China
23 Oct - 05 Nov	Scandinavian Airlines
12 Oct - 01 Nov	Asiana Airlines	direct
27 Oct - 08 Nov	Asiana Airlines	direct
25 Oct - 10 Nov	Asiana Airlines	direct

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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Seoul to London in October from 580€

Return flights