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

Return flights

14 Jul - 29 Jul	Lufthansa
01 Jul - 28 Jul	SWISS
01 Jul - 12 Jul	SWISS
01 Jul - 16 Jul	SWISS
01 Jul - 08 Jul	SWISS
01 Jul - 15 Jul	SWISS
15 Jul - 22 Jul	Lufthansa
22 Jul - 09 Aug	SWISS
20 Jul - 17 Aug	SWISS
14 Jul - 12 Aug	Lufthansa
16 Jul - 12 Aug	Lufthansa
06 Jul - 15 Jul	Lufthansa
08 Jul - 15 Jul	Lufthansa
01 Jul - 30 Aug	SWISS
22 Jul - 04 Aug	SWISS
02 Jul - 13 Jul	Lufthansa
15 Jul - 12 Aug	Lufthansa
29 Jul - 12 Aug	Lufthansa
20 Jul - 12 Aug	Lufthansa
22 Jul - 12 Aug	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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from London to Seoul in July from 732€

Return flights