Cheapest one-way flights from Seoul to London in April from $301
AirHint found the following cheapest one-way flights from Seoul (ICN) to London (LHR) in April 2026 (see full year).
One-Way flights
Also check the deals for return flights from Seoul to London in April.
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.
