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

Return flights

24 Aug - 01 Sep	Ryanair
31 Aug - 16 Sep	Ryanair
19 Aug - 01 Sep	Ryanair
31 Aug - 07 Sep	Ryanair
30 Aug - 13 Sep	Ryanair
19 Aug - 02 Sep	Ryanair
25 Aug - 08 Sep	Ryanair
18 Aug - 25 Aug	Ryanair
26 Aug - 02 Sep	Ryanair
18 Aug - 04 Sep	Ryanair
12 Aug - 02 Sep	Ryanair
10 Aug - 17 Aug	Ryanair
10 Aug - 29 Aug	Ryanair
10 Aug - 20 Aug	Ryanair
15 Aug - 29 Aug	Ryanair
18 Aug - 27 Aug	Ryanair
08 Aug - 17 Aug	Ryanair
08 Aug - 22 Aug	Ryanair
13 Aug - 27 Aug	Ryanair
03 Aug - 17 Aug	Wizz Air Malta

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 655€

Return flights