Cheapest return flights from London to Seoul in April from $690

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

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

Return flights

06 Apr - 15 Apr Air China
06 Apr - 20 Apr Air China
11 Apr - 25 Apr Air China
06 Apr - 17 Apr Air China
18 Apr - 25 Apr Air China
15 Apr - 27 Apr Air China
08 Apr - 29 Apr Air China
06 Apr - 13 Apr Air China
06 Apr - 18 Apr Air China
09 Apr - 17 Apr Air China

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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