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

Return flights

05 Mar - 20 Mar	Lufthansa
15 Mar - 22 Mar	Lufthansa
08 Mar - 19 Mar	Lufthansa
03 Mar - 19 Mar	Lufthansa
09 Mar - 23 Mar	Lufthansa
19 Mar - 01 Apr	Lufthansa
12 Mar - 23 Mar	Lufthansa
08 Mar - 21 Mar	Lufthansa
12 Mar - 25 Mar	Lufthansa
12 Mar - 01 Apr	Lufthansa
09 Mar - 17 Mar	Lufthansa
19 Mar - 29 Mar	Lufthansa
12 Mar - 02 Apr	Air China
19 Mar - 09 Apr	Air China
18 Mar - 04 Apr	Air China
26 Mar - 02 Apr	Wizz Air UK
30 Mar - 06 Apr	SWISS
02 Mar - 13 Apr	Norwegian Air Sweden AOC
31 Mar - 28 Apr	Ryanair
19 Mar - 04 Apr	Lufthansa

Also check the deals for one-way flights from London to Seoul in March.

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 March from 488€

Return flights