Cheapest return LON–ICN flights, May

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

Return flights

02 May - 19 May Shenzhen Airlines
16 May - 21 May Shenzhen Airlines
02 May - 12 May Shenzhen Airlines
06 May - 12 May Shenzhen Airlines
11 May - 19 May Shenzhen Airlines
16 May - 19 May Shenzhen Airlines
06 May - 20 May Ryanair
11 May - 20 May Shenzhen Airlines
16 May - 20 May Shenzhen Airlines
13 May - 20 May Hainan Airlines
17 May - 04 Jun Ryanair
02 May - 09 Jun Air China
19 May - 02 Jun Ryanair
30 May - 10 Jun Ryanair
12 May - 11 Jun Wizz Air UK
18 May - 03 Jun Shenzhen Airlines
02 May - 08 Jun Air China
02 May - 02 Jun Air China
02 May - 01 Jun Air China
02 May - 11 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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