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

Return flights

06 Jul - 12 Jul	KLM
02 Jul - 14 Jul	KLM
03 Jul - 17 Jul	KLM
13 Jul - 20 Jul	KLM
17 Jul - 02 Aug	KLM
21 Jul - 29 Jul	SWISS
23 Jul - 10 Aug	KLM
07 Jul - 28 Jul	British Airways
24 Jul - 14 Aug	KLM
16 Jul - 23 Jul	KLM
09 Jul - 21 Jul	KLM
04 Jul - 19 Jul	KLM
08 Jul - 17 Jul	KLM
23 Jul - 13 Aug	KLM
24 Jul - 24 Aug	KLM
17 Jul - 23 Aug	KLM
25 Jul - 09 Aug	KLM
27 Jul - 11 Aug	KLM
20 Jul - 14 Aug	KLM
27 Jul - 24 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 $1125

Return flights