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

Return flights

02 Jul - 13 Jul	KLM
01 Jul - 10 Jul	KLM
01 Jul - 15 Jul	KLM
01 Jul - 17 Jul	KLM
03 Jul - 16 Jul	KLM
01 Jul - 22 Jul	KLM
08 Jul - 15 Jul	KLM
16 Jul - 28 Jul	KLM
05 Jul - 11 Jul	KLM
01 Jul - 20 Aug	KLM
20 Jul - 03 Aug	KLM
08 Jul - 22 Jul	SWISS
23 Jul - 06 Aug	KLM
01 Jul - 19 Aug	KLM
15 Jul - 13 Aug	KLM
22 Jul - 10 Aug	KLM
26 Jul - 02 Aug	KLM
27 Jul - 02 Aug	KLM
22 Jul - 13 Aug	SWISS
25 Jul - 16 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 $1158

Return flights