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

Return flights

07 Jul - 14 Jul	Finnair
01 Jul - 31 Aug	Finnair
01 Jul - 06 Jul	Finnair
02 Jul - 14 Jul	Finnair
06 Jul - 20 Jul	Finnair
01 Jul - 08 Jul	Finnair
13 Jul - 20 Jul	Finnair
07 Jul - 21 Jul	Finnair
27 Jul - 10 Aug	Finnair
14 Jul - 21 Jul	Finnair
02 Jul - 09 Jul	Finnair
12 Jul - 20 Jul	Finnair
27 Jul - 03 Aug	Finnair
16 Jul - 13 Aug	Etihad Airways
17 Jul - 16 Aug	Air China
17 Jul - 15 Aug	Air China
01 Jul - 01 Aug	Air China
28 Jul - 04 Aug	Scandinavian Airlines
16 Jul - 16 Aug	Scandinavian Airlines
11 Jul - 02 Aug	Scandinavian Airlines

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 $764

Return flights