AirHint found the following cheapest return flights from London (LTN) to Seoul (ICN) in August 2025 (see full year).

Return flights

24 Aug - 04 Sep	Wizz Air
31 Aug - 14 Sep	Wizz Air
30 Aug - 21 Sep	Wizz Air
30 Aug - 14 Sep	Wizz Air
30 Aug - 07 Sep	Wizz Air
31 Aug - 12 Sep	Wizz Air
27 Aug - 23 Sep	Wizz Air
28 Aug - 07 Sep	Wizz Air
30 Aug - 20 Sep	Wizz Air
29 Aug - 14 Sep	easyJet
19 Aug - 25 Aug	easyJet
18 Aug - 26 Aug	Ryanair
23 Aug - 29 Aug	Wizz Air
25 Aug - 31 Aug	easyJet
22 Aug - 29 Aug	Wizz Air
25 Aug - 29 Aug	easyJet
19 Aug - 27 Aug	easyJet
22 Aug - 26 Aug	easyJet
24 Aug - 29 Aug	easyJet
21 Aug - 26 Aug	Ryanair

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from London to Seoul in August from 595€

Return flights