Cheapest return LHR–ICN flights, September

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

Return flights

20 Sep - 13 Oct Shenzhen Airlines
19 Sep - 13 Oct Shenzhen Airlines
21 Sep - 15 Oct Shenzhen Airlines
21 Sep - 16 Oct Shenzhen Airlines
16 Sep - 16 Oct Shenzhen Airlines
16 Sep - 13 Oct Shenzhen Airlines
18 Sep - 18 Oct Shenzhen Airlines
10 Sep - 26 Oct China Southern
10 Sep - 12 Oct China Southern
08 Sep - 29 Sep Air India
01 Sep - 29 Sep Air India
14 Sep - 08 Oct Air India
06 Sep - 30 Sep Air India
13 Sep - 29 Sep Air India
03 Sep - 30 Sep Air India
13 Sep - 30 Sep Air India
22 Sep - 29 Sep Air India
14 Sep - 30 Sep Air India
14 Sep - 29 Sep Air India
15 Sep - 29 Sep Air India

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

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