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

Return flights

08 Aug - 23 Aug	Air China
01 Aug - 13 Aug	Air China
23 Aug - 06 Sep	British Airways
08 Aug - 25 Aug	Air China
02 Aug - 16 Aug	Air China
04 Aug - 13 Aug	China Southern
01 Aug - 09 Aug	China Southern
05 Aug - 13 Aug	China Southern
03 Aug - 10 Aug	Japan Airlines
07 Aug - 30 Aug	Air China
24 Aug - 06 Sep	Air China
18 Aug - 04 Sep	Air China
16 Aug - 20 Aug	Air China
31 Aug - 07 Sep	Japan Airlines
21 Aug - 06 Sep	Air China
31 Aug - 13 Sep	Japan Airlines
28 Aug - 04 Sep	Japan Airlines
31 Aug - 11 Sep	Japan Airlines
28 Aug - 05 Sep	Japan Airlines
17 Aug - 08 Sep	Japan Airlines

Also check the deals for one-way flights from London to Seoul in August.

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 August from 1021€

Return flights