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

Return flights

16 Jun - 21 Jun	Air China
08 Jun - 18 Jun	Air China
12 Jun - 21 Jun	Air China
05 Jun - 14 Jun	Air China
11 Jun - 17 Jun	Air China
10 Jun - 17 Jun	Air China
01 Jun - 21 Jun	Air China
07 Jun - 23 Jun	Air China
15 Jun - 22 Jun	Air China
05 Jun - 20 Jun	Air China
17 Jun - 02 Jul	Air China
17 Jun - 01 Jul	Air China
15 Jun - 01 Jul	Air China
18 Jun - 02 Jul	Air China
17 Jun - 29 Jul	Air China
17 Jun - 06 Jul	Air China
12 Jun - 04 Jul	China Eastern
19 Jun - 10 Jul	Turkish Airlines
26 Jun - 10 Jul	Turkish Airlines
06 Jun - 06 Jul	China Eastern

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 396€

Return flights