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

Return flights

06 Jul - 13 Jul	KLM
15 Jul - 22 Jul	Lufthansa
02 Jul - 14 Jul	Lufthansa
01 Jul - 07 Jul	Lufthansa
06 Jul - 26 Jul	KLM
01 Jul - 12 Jul	KLM
02 Jul - 11 Jul	KLM
02 Jul - 12 Jul	KLM
02 Jul - 16 Jul	KLM
06 Jul - 06 Aug	KLM
13 Jul - 26 Jul	KLM
16 Jul - 06 Aug	KLM
24 Jul - 07 Aug	KLM
01 Jul - 09 Aug	Lufthansa
08 Jul - 08 Aug	Lufthansa
27 Jul - 06 Aug	Lufthansa
18 Jul - 01 Aug	KLM
11 Jul - 01 Aug	KLM
10 Jul - 09 Aug	Lufthansa
28 Jul - 07 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 933€

Return flights