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

Return flights

01 Jul - 22 Jul	Etihad Airways
04 Jul - 18 Jul	Lufthansa
03 Jul - 10 Jul	Lufthansa
01 Jul - 25 Jul	Shenzhen Airlines
11 Jul - 25 Jul	Shenzhen Airlines
03 Jul - 11 Jul	Shenzhen Airlines
11 Jul - 24 Jul	Shenzhen Airlines
06 Jul - 12 Jul	Etihad Airways
11 Jul - 18 Jul	Shenzhen Airlines
01 Jul - 29 Jul	Lufthansa

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 653€

Return flights