Cheapest return flights from Seoul to London in September from $665

Best time to book flights for Seoul (ICN) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Seoul (ICN) to London (LHR) in September 2025 (see full year).

Return flights

16 Sep - 23 Sep Etihad Airways
18 Sep - 23 Sep Etihad Airways
16 Sep - 22 Sep Etihad Airways
18 Sep - 24 Sep Etihad Airways
18 Sep - 25 Sep Etihad Airways
01 Sep - 13 Sep Finnair
17 Sep - 24 Sep Etihad Airways
16 Sep - 30 Sep Air India
18 Sep - 26 Sep Air India
08 Sep - 15 Sep Air China
10 Sep - 16 Oct Air China
22 Sep - 13 Oct Air China
24 Sep - 13 Oct Air China
20 Sep - 25 Oct Air China
24 Sep - 11 Oct Air China
24 Sep - 06 Oct Air China
09 Sep - 14 Oct Air China
30 Sep - 13 Oct Etihad Airways
24 Sep - 14 Oct Air China
29 Sep - 13 Oct Etihad 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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