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

Return flights

13 May - 20 May	Wizz Air Malta
17 May - 25 May	Wizz Air Malta
11 May - 19 May	easyJet
05 May - 13 May	Wizz Air
03 May - 10 May	Wizz Air UK
09 May - 19 May	Wizz Air
07 May - 22 May	Wizz Air
13 May - 23 May	Wizz Air UK
09 May - 17 May	Wizz Air
10 May - 22 May	Wizz Air
07 May - 07 Jun	Wizz Air
25 May - 02 Jun	Ryanair
28 May - 17 Jun	Ryanair
19 May - 10 Jun	Wizz Air
27 May - 10 Jun	FlyOne (Romania)
20 May - 10 Jun	Wizz Air
29 May - 06 Jun	Ryanair
12 May - 15 Jun	Wizz Air
26 May - 10 Jun	Wizz Air UK
16 May - 01 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from London to Seoul in May from $501

Return flights