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

Return flights

04 May - 12 May	Ryanair
04 May - 18 May	Ryanair
02 May - 12 May	Ryanair
02 May - 23 May	Ryanair
11 May - 21 May	Ryanair
02 May - 17 May	Ryanair
02 May - 07 May	Ryanair
02 May - 08 May	Ryanair
11 May - 20 May	Ryanair
05 May - 12 May	Ryanair
18 May - 01 Jun	Emirates
17 May - 02 Jun	Emirates

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

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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Cheapest return flights from London to Seoul in May from 710€

Return flights