Cheapest one-way flights from Seoul to London in April from $245

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

One-Way flights

01 Apr Jeju Air
25 Apr Jeju Air
02 Apr Jeju Air
03 Apr Korean Air
20 Apr Jeju Air
27 Apr Jeju Air
14 Apr Jeju Air
28 Apr T'way Air
26 Apr Korean Air
15 Apr Korean Air

Also check the deals for return 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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