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

Return flights

01 Jun - 17 Jun	Air China
11 Jun - 15 Jun	China Southern
06 Jun - 13 Jun	China Southern
18 Jun - 27 Jun	China Southern
06 Jun - 20 Jun	China Southern
12 Jun - 27 Jun	Air China
15 Jun - 25 Jun	Air China
14 Jun - 26 Jun	Air China
28 Jun - 08 Jul	Air China
13 Jun - 17 Jun	Air China
18 Jun - 25 Jun	Air China
27 Jun - 03 Jul	Air China
22 Jun - 01 Jul	Air China
24 Jun - 07 Jul	Air China
17 Jun - 08 Jul	ANA
25 Jun - 02 Jul	Asiana Airlines
30 Jun - 08 Jul	ANA

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 688€

Return flights