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

Return flights

10 May - 19 May	Wizz Air Malta
05 May - 12 May	Ryanair
16 May - 21 May	Wizz Air Malta
06 May - 14 May	Ryanair
07 May - 21 May	Wizz Air
12 May - 26 May	Wizz Air Malta
12 May - 28 May	Ryanair
02 May - 07 May	Ryanair
07 May - 12 May	Wizz Air
10 May - 12 May	Wizz Air Malta
30 May - 13 Jun	Ryanair
26 May - 16 Jun	Wizz Air UK
18 May - 01 Jun	Wizz Air UK
18 May - 02 Jun	easyJet
25 May - 01 Jun	Ryanair
28 May - 04 Jun	Wizz Air UK
13 May - 03 Jun	Wizz Air
29 May - 05 Jun	easyJet
28 May - 12 Jun	Ryanair
28 May - 15 Jun	Ryanair

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 635€

Return flights