Cheapest return flights from Seoul to London in September from $848

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

Return flights

17 Sep - 29 Sep Vietnam Airlines
16 Sep - 29 Sep Vietnam Airlines
14 Sep - 21 Sep Vietnam Airlines
19 Sep - 03 Oct Scat Airlines
17 Sep - 24 Sep Vietnam Airlines
14 Sep - 27 Sep Vietnam Airlines
16 Sep - 02 Oct Vietnam Airlines
13 Sep - 20 Sep Vietnam Airlines
20 Sep - 30 Sep Vietnam Airlines
30 Sep - 01 Oct Vietnam Airlines
18 Sep - 30 Sep Scandinavian Airlines
08 Sep - 15 Sep Korean Air
18 Sep - 24 Sep LOT
16 Sep - 05 Oct LOT
27 Sep - 04 Oct Korean Air
24 Sep - 03 Oct LOT
16 Sep - 04 Oct LOT
30 Sep - 11 Oct LOT
26 Sep - 10 Oct LOT
23 Sep - 04 Oct LOT

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

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