AirHint found the following cheapest return flights from London (LTN) to Seoul (ICN) in June 2025 (see full year).

Return flights

16 Jun - 26 Jun	Wizz Air UK
16 Jun - 29 Jun	easyJet
16 Jun - 02 Jul	easyJet
11 Jun - 09 Jul	Jet2
23 Jun - 01 Jul	Wizz Air
09 Jun - 29 Jun	easyJet
18 Jun - 03 Jul	Wizz Air
10 Jun - 18 Jun	Wizz Air
13 Jun - 26 Jun	Wizz Air UK
25 Jun - 10 Jul	Wizz Air
23 Jun - 09 Jul	easyJet
19 Jun - 27 Jun	easyJet
11 Jun - 27 Jun	Wizz Air
10 Jun - 17 Jun	Wizz Air
16 Jun - 22 Jun	easyJet
19 Jun - 25 Jun	easyJet
17 Jun - 08 Jul	easyJet
23 Jun - 06 Jul	easyJet
16 Jun - 16 Jul	easyJet
23 Jun - 25 Jul	Fly One

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

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 June from 603€

Return flights