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

Return flights

10 Jun - 25 Jun	Ryanair
10 Jun - 24 Jun	Ryanair
10 Jun - 09 Jul	Ryanair
10 Jun - 27 Jun	Ryanair
10 Jun - 17 Jun	Ryanair
09 Jun - 27 Jun	Ryanair
09 Jun - 26 Jun	Ryanair
17 Jun - 01 Jul	Ryanair
17 Jun - 24 Jun	Ryanair
17 Jun - 25 Jun	Ryanair
15 Jun - 24 Jun	Ryanair
17 Jun - 09 Jul	Ryanair
12 Jun - 03 Jul	Ryanair
11 Jun - 06 Jul	Ryanair
22 Jun - 25 Jun	Ryanair
15 Jun - 09 Jul	Ryanair
22 Jun - 01 Jul	Ryanair
22 Jun - 08 Jul	Ryanair
23 Jun - 01 Jul	AJet
22 Jun - 03 Jul	Ryanair

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 483€

Return flights