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

Return flights

31 Aug - 07 Sep	Ryanair
28 Aug - 04 Sep	Wizz Air
30 Aug - 06 Sep	Wizz Air
21 Aug - 06 Sep	Wizz Air
17 Aug - 25 Aug	Wizz Air UK
10 Aug - 19 Aug	Ryanair
10 Aug - 21 Aug	Ryanair
10 Aug - 22 Aug	Ryanair
13 Aug - 20 Aug	Ryanair
12 Aug - 21 Aug	Ryanair
25 Aug - 30 Aug	Ryanair
23 Aug - 06 Sep	Ryanair
12 Aug - 26 Aug	Ryanair
24 Aug - 06 Sep	Ryanair
03 Aug - 04 Sep	Ryanair
15 Aug - 20 Aug	Ryanair
16 Aug - 30 Aug	Ryanair
31 Aug - 11 Sep	Wizz Air UK

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 675€

Return flights