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

Return flights

07 Jul - 12 Jul	Air India
07 Jul - 28 Jul	Air India
07 Jul - 21 Jul	Air India
01 Jul - 01 Aug	Air India
09 Jul - 19 Jul	Air India
06 Jul - 21 Jul	Air India
03 Jul - 17 Jul	Air India
02 Jul - 09 Jul	Air India
09 Jul - 16 Jul	Air India
06 Jul - 18 Jul	Air India
04 Jul - 14 Jul	Air India
20 Jul - 06 Aug	Lufthansa
05 Jul - 09 Aug	Lufthansa
29 Jul - 13 Aug	Lufthansa
20 Jul - 13 Aug	Lufthansa
30 Jul - 15 Aug	Lufthansa
20 Jul - 05 Aug	Lufthansa
23 Jul - 03 Aug	Lufthansa
27 Jul - 03 Aug	Lufthansa
09 Jul - 11 Aug	Air India

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 550€

Return flights