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

Return flights

14 Jul - 21 Jul	Lufthansa
05 Jul - 19 Jul	Etihad Airways
07 Jul - 18 Jul	Etihad Airways
08 Jul - 22 Jul	Etihad Airways
01 Jul - 16 Jul	Lufthansa
06 Jul - 17 Jul	Etihad Airways
01 Jul - 17 Jul	Etihad Airways
04 Jul - 12 Jul	Air India
03 Jul - 10 Jul	Turkish Airlines
02 Jul - 12 Jul	Turkish Airlines
21 Jul - 17 Aug	Finnair
20 Jul - 14 Aug	Finnair
03 Jul - 15 Aug	Finnair
16 Jul - 13 Aug	Lufthansa
23 Jul - 11 Aug	KLM
27 Jul - 10 Aug	Finnair
18 Jul - 04 Aug	Finnair
29 Jul - 08 Aug	Finnair
20 Jul - 15 Aug	Finnair
24 Jul - 07 Aug	Air China

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

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 July from $833

Return flights