Cheapest return ICN–LHR flights, September

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

Return flights

04 Sep - 13 Sep Air China
04 Sep - 15 Sep Air China
03 Sep - 09 Sep Air China
03 Sep - 10 Sep Air China
07 Sep - 18 Sep Air China
06 Sep - 14 Sep Air China
04 Sep - 07 Sep Air China
08 Sep - 15 Sep Air China
04 Sep - 12 Sep Air China
08 Sep - 13 Sep Air China
04 Sep - 04 Oct Air China
27 Sep - 05 Oct Etihad Airways
30 Sep - 21 Oct Scandinavian Airlines
28 Sep - 06 Oct Scandinavian Airlines
25 Sep - 02 Oct Qatar Airways
29 Sep - 29 Oct Scandinavian Airlines
25 Sep - 07 Oct Scandinavian Airlines
24 Sep - 01 Oct Qatar Airways
28 Sep - 03 Oct Qatar Airways
26 Sep - 02 Oct Qatar Airways

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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