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

Return flights

24 Aug - 15 Sep	Ryanair
30 Aug - 28 Sep	Wizz Air
31 Aug - 13 Sep	Ryanair
31 Aug - 12 Sep	Ryanair
30 Aug - 04 Sep	Wizz Air
18 Aug - 25 Aug	Ryanair
18 Aug - 27 Aug	Ryanair
29 Aug - 29 Sep	Wizz Air UK
24 Aug - 19 Sep	Ryanair
29 Aug - 04 Sep	Ryanair
29 Aug - 13 Sep	Ryanair
18 Aug - 31 Aug	Wizz Air UK
08 Aug - 01 Sep	Ryanair
17 Aug - 24 Aug	Wizz Air Malta
05 Aug - 26 Aug	Wizz Air UK
10 Aug - 24 Aug	Wizz Air Malta
03 Aug - 07 Aug	easyJet
08 Aug - 15 Aug	Ryanair
09 Aug - 27 Aug	Wizz Air
16 Aug - 29 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 721€

Return flights