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

Return flights

23 May - 28 May	Wizz Air Malta
04 May - 11 May	Wizz Air Malta
11 May - 25 May	Wizz Air Malta
13 May - 18 May	Ryanair
22 May - 28 May	Wizz Air Malta
01 May - 11 May	Wizz Air Malta
11 May - 23 May	Wizz Air Malta
22 May - 07 Jun	Wizz Air Malta
05 May - 14 May	Ryanair
21 May - 01 Jun	Wizz Air Malta
04 May - 18 May	Wizz Air Malta
23 May - 29 May	Wizz Air
18 May - 08 Jun	Wizz Air
18 May - 03 Jun	Wizz Air
26 May - 04 Jun	Wizz Air Malta
25 May - 01 Jun	Wizz Air Malta
28 May - 04 Jun	Ryanair
24 May - 07 Jun	easyJet

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 648€

Return flights