Cheapest return flights from Seoul to London in April from $640

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

Return flights

02 Apr - 11 Apr Air China
08 Apr - 15 Apr Air China
21 Apr - 27 Apr Air China
24 Apr - 04 May Air China
28 Apr - 07 May Air China
30 Apr - 09 May Air China
23 Apr - 25 Apr Air China
19 Apr - 22 Apr Air China
30 Apr - 08 May Air China
20 Apr - 30 Apr Air China
22 Apr - 29 Apr Air China

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