AirHint found the following cheapest return flights from London (LGW) to Seoul (ICN) in July 2025 (see full year).

Return flights

28 Jul - 08 Aug	Norwegian
21 Jul - 31 Jul	Wizz Air
16 Jul - 23 Jul	Wizz Air
20 Jul - 11 Aug	Wizz Air
28 Jul - 11 Aug	Norwegian
28 Jul - 07 Aug	Wizz Air UK
21 Jul - 28 Jul	Wizz Air
29 Jul - 01 Aug	Wizz Air UK
21 Jul - 01 Aug	Wizz Air
17 Jul - 23 Jul	Wizz Air
21 Jul - 03 Aug	Wizz Air
27 Jul - 31 Jul	Wizz Air UK
16 Jul - 25 Jul	Wizz Air
20 Jul - 05 Aug	Wizz Air
28 Jul - 01 Aug	Wizz Air UK
22 Jul - 06 Aug	easyJet
21 Jul - 30 Jul	Wizz Air Malta
19 Jul - 29 Jul	Wizz Air Malta
22 Jul - 28 Jul	easyJet
17 Jul - 24 Jul	Wizz Air

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 $923

Return flights