Cheapest return flights from London to Seoul in May from $770

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

Return flights

20 May - 31 May Air China
22 May - 29 May Air China
19 May - 31 May Air China
01 May - 23 May Air China
12 May - 26 May Air China
01 May - 16 May Air China
15 May - 30 May Air China
26 May - 30 May Air China
27 May - 10 Jun Air China
01 May - 22 May Air China
01 May - 31 May Air China
28 May - 11 Jun Japan Airlines
18 May - 01 Jun Japan Airlines
01 May - 29 Jun Japan Airlines

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

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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