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

Return flights

13 Jun - 26 Jun	Shenzhen Airlines
15 Jun - 25 Jun	Shenzhen Airlines
13 Jun - 21 Jun	Shenzhen Airlines
15 Jun - 27 Jun	Shenzhen Airlines
11 Jun - 18 Jun	Air China
05 Jun - 19 Jun	Air China
04 Jun - 20 Jun	Air China
06 Jun - 14 Jun	Air China
02 Jun - 16 Jun	Air China
05 Jun - 16 Jun	Air China
22 Jun - 01 Jul	Lufthansa
08 Jun - 01 Jul	Lufthansa
08 Jun - 01 Jul	Korean Air	direct
22 Jun - 01 Jul	Korean Air	direct

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from London to Seoul in June from $645

Return flights