Cheapest one-way flights from London to Seoul in April from $589

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

One-Way flights

09 Apr China Southern
22 Apr China Southern
18 Apr China Southern
12 Apr China Southern
17 Apr China Southern
25 Apr China Southern
05 Apr Finnair
06 Apr China Southern
03 Apr China Southern
04 Apr China Southern

Also check the deals for return flights from London to Seoul in April.

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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