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

Return flights

28 Jul - 31 Aug	Lufthansa
27 Jul - 31 Aug	Lufthansa
02 Jul - 07 Jul	Lufthansa
23 Jul - 13 Aug	Lufthansa
22 Jul - 13 Aug	Lufthansa
25 Jul - 13 Aug	Lufthansa
01 Jul - 07 Jul	Finnair
08 Jul - 21 Jul	Lufthansa
25 Jul - 16 Aug	Lufthansa
07 Jul - 13 Jul	Lufthansa
21 Jul - 15 Aug	Lufthansa
28 Jul - 15 Aug	Lufthansa
25 Jul - 04 Aug	Lufthansa
30 Jul - 04 Aug	Lufthansa
06 Jul - 14 Jul	Finnair
07 Jul - 14 Jul	Finnair
14 Jul - 21 Jul	Lufthansa
01 Jul - 08 Jul	Finnair
09 Jul - 16 Jul	Etihad Airways
10 Jul - 16 Jul	Etihad Airways

Also check the deals for one-way flights from Seoul to London 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 Seoul to London in July from 575€

Return flights