Cheapest return flights from London to Seoul in August from $684

Best time to book flights for London (LON) to Seoul (ICN) flights at AirHint

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

Return flights

20 Aug - 29 Aug Norwegian
31 Aug - 12 Sep LOT
28 Aug - 04 Sep LOT
26 Aug - 02 Sep Finnair
20 Aug - 01 Sep Finnair
31 Aug - 09 Sep Finnair
29 Aug - 15 Sep Finnair
30 Aug - 13 Sep Finnair
30 Aug - 14 Sep Finnair
18 Aug - 01 Sep Finnair
23 Aug - 07 Sep Finnair
07 Aug - 14 Aug LOT
23 Aug - 28 Aug LOT
21 Aug - 29 Aug LOT
14 Aug - 27 Aug LOT
11 Aug - 22 Aug LOT
05 Aug - 15 Aug LOT
12 Aug - 29 Aug LOT
19 Aug - 29 Aug LOT
12 Aug - 28 Aug LOT

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

Skyscanner

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