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

Return flights

08 Jun - 17 Jun	Lufthansa
01 Jun - 11 Jun	Lufthansa
15 Jun - 29 Jun	Lufthansa
22 Jun - 29 Jun	Lufthansa
01 Jun - 24 Jun	Air China
01 Jun - 15 Jun	Air China
02 Jun - 16 Jun	Air China
15 Jun - 30 Jun	Lufthansa
02 Jun - 09 Jun	Scandinavian Airlines
01 Jun - 12 Jun	Scandinavian Airlines
18 Jun - 03 Jul	Air China
12 Jun - 03 Jul	Air China
29 Jun - 13 Jul	Lufthansa
25 Jun - 09 Jul	Lufthansa
20 Jun - 07 Jul	Finnair
20 Jun - 04 Jul	Finnair
25 Jun - 11 Jul	Finnair
26 Jun - 10 Jul	Turkish Airlines
25 Jun - 10 Jul	Turkish Airlines
26 Jun - 05 Jul	Air India

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 $607

Return flights