Cheapest return flights from London to Seoul in September from 381€

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

Return flights

28 Sep - 12 Oct China Eastern
30 Sep - 16 Oct China Southern
30 Sep - 17 Oct China Southern
30 Sep - 15 Oct China Southern
29 Sep - 23 Oct China Southern
29 Sep - 13 Oct China Southern
27 Sep - 12 Oct China Southern
27 Sep - 10 Oct China Southern
29 Sep - 29 Oct China Southern
27 Sep - 23 Oct China Southern
21 Sep - 29 Sep China Eastern
22 Sep - 30 Sep Hainan Airlines
21 Sep - 30 Sep China Eastern
24 Sep - 30 Sep Hainan Airlines
22 Sep - 29 Sep Hainan Airlines
22 Sep - 25 Sep Shenzhen Airlines
24 Sep - 29 Sep Hainan Airlines
26 Sep - 30 Sep Air India
21 Sep - 24 Sep Air India
25 Sep - 28 Sep Air China

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