Cheapest return flights from Seoul to London in September from $725

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

Return flights

02 Sep - 16 Sep Scandinavian Airlines
05 Sep - 16 Sep Scandinavian Airlines
05 Sep - 13 Sep Scandinavian Airlines
10 Sep - 16 Sep Scandinavian Airlines
02 Sep - 06 Sep Scandinavian Airlines
14 Sep - 18 Sep Scandinavian Airlines
10 Sep - 18 Sep Scandinavian Airlines
02 Sep - 17 Sep Scandinavian Airlines
15 Sep - 23 Sep Scandinavian Airlines
05 Sep - 11 Sep Scandinavian Airlines
29 Sep - 15 Oct Finnair
29 Sep - 06 Oct Etihad Airways
17 Sep - 12 Oct China Airlines
08 Sep - 16 Oct Asiana Airlines direct
28 Sep - 07 Oct Finnair
22 Sep - 04 Oct Etihad Airways
29 Sep - 07 Oct Finnair
25 Sep - 11 Oct Etihad Airways
30 Sep - 06 Oct Vietnam Airlines
29 Sep - 05 Oct Finnair

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

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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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