Cheapest return flights from London to Seoul in April 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 April 2025 (see full year).

Return flights

26 Apr - 11 May KLM
01 Apr - 23 Apr SWISS
01 Apr - 15 Apr SWISS
24 Apr - 06 May KLM
07 Apr - 11 Apr KLM
01 Apr - 30 Apr SWISS
30 Apr - 16 May KLM
01 Apr - 13 Apr SWISS
01 Apr - 10 Apr SWISS
24 Apr - 07 May KLM
01 Apr - 14 May SWISS
03 Apr - 10 Apr KLM
01 Apr - 16 Apr SWISS
28 Apr - 19 May KLM
26 Apr - 14 May KLM
01 Apr - 09 Apr SWISS
26 Apr - 09 May KLM
02 Apr - 10 Apr KLM
14 Apr - 21 May KLM
23 Apr - 21 May KLM

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

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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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