Cheapest return flights from London to Seoul in May from $459

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

Return flights

27 May - 06 Jun China Eastern
01 May - 09 May China Eastern
27 May - 03 Jun China Eastern
07 May - 15 May China Eastern
11 May - 19 May China Eastern
19 May - 27 May China Eastern
25 May - 02 Jun China Eastern
05 May - 13 May Air China
21 May - 29 May Air China
13 May - 21 May China Eastern
15 May - 23 May Air China
16 May - 25 May Air China
18 May - 29 May Air China
29 May - 15 Jun Air China
28 May - 17 Jun Air China
28 May - 08 Jun Air China
26 May - 15 Jun Air China
26 May - 17 Jun Air China
25 May - 17 Jun Air China
25 May - 15 Jun Air China

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

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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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