Cheapest return flights from London to Seoul in September from $926

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

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

Return flights

15 Sep - 15 Oct SWISS
04 Sep - 18 Sep KLM
19 Sep - 22 Oct SWISS
08 Sep - 18 Sep KLM
09 Sep - 22 Sep SWISS
08 Sep - 22 Sep SWISS
08 Sep - 24 Sep SWISS
03 Sep - 18 Sep KLM
22 Sep - 13 Oct SWISS
08 Sep - 15 Sep SWISS
08 Sep - 17 Sep SWISS
30 Sep - 12 Oct SWISS
25 Sep - 13 Oct SWISS
01 Sep - 16 Sep KLM
01 Sep - 06 Sep KLM
24 Sep - 11 Oct KLM
26 Sep - 11 Oct KLM
26 Sep - 17 Oct KLM
21 Sep - 26 Oct KLM
21 Sep - 09 Oct KLM

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

Skyscanner

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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