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

Return flights

07 Jul - 15 Jul	SWISS
15 Jul - 22 Jul	Lufthansa
03 Jul - 13 Jul	SWISS
10 Jul - 15 Jul	SWISS
01 Jul - 09 Jul	Lufthansa
15 Jul - 19 Jul	KLM
13 Jul - 21 Jul	Lufthansa
10 Jul - 17 Aug	Lufthansa
28 Jul - 12 Aug	SWISS
05 Jul - 10 Jul	KLM
27 Jul - 03 Aug	Lufthansa
14 Jul - 27 Jul	SWISS
06 Jul - 20 Jul	KLM
07 Jul - 04 Aug	KLM
21 Jul - 05 Aug	SWISS
21 Jul - 18 Aug	SWISS
28 Jul - 10 Aug	SWISS
21 Jul - 24 Aug	SWISS
27 Jul - 17 Aug	KLM
20 Jul - 29 Aug	KLM

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 $1087

Return flights