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

Return flights

16 Jun - 25 Jun	Air China
02 Jun - 11 Jun	Air China
01 Jun - 15 Jun	Air China
09 Jun - 15 Jun	Air China
25 Jun - 30 Jun	Air China
24 Jun - 30 Jun	Air China
18 Jun - 30 Jun	Air China
07 Jun - 15 Jun	Air China
15 Jun - 22 Jun	Air China
01 Jun - 06 Jun	Air China
22 Jun - 02 Jul	Air China
24 Jun - 07 Jul	Lufthansa
29 Jun - 07 Jul	Lufthansa
01 Jun - 01 Jul	Finnair
22 Jun - 08 Jul	Finnair
26 Jun - 03 Jul	Air China
23 Jun - 03 Jul	Air China
28 Jun - 14 Jul	Finnair
27 Jun - 06 Jul	Finnair
21 Jun - 08 Jul	Finnair

Also check the deals for one-way flights from Seoul to London 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 Seoul to London in June from $567

Return flights