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

Return flights

19 May - 23 Jun	Wizz Air
05 May - 19 May	Wizz Air
05 May - 18 May	Wizz Air
15 May - 21 May	Wizz Air
05 May - 21 May	Wizz Air
11 May - 19 May	Wizz Air
05 May - 18 Jun	Wizz Air
05 May - 08 Jun	Wizz Air
26 May - 23 Jun	Wizz Air
27 May - 23 Jun	Ryanair
02 May - 12 May	Wizz Air
14 May - 21 May	Wizz Air
01 May - 21 May	Wizz Air
01 May - 12 May	Wizz Air
03 May - 17 May	Wizz Air UK
23 May - 06 Jun	Wizz Air
27 May - 24 Jun	Ryanair
26 May - 24 Jun	Wizz Air
05 May - 15 Jun	Wizz Air
25 May - 24 Jun	Wizz Air

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 531€

Return flights