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

Return flights

05 Mar - 15 Mar	Lufthansa
13 Mar - 24 Mar	Lufthansa
04 Mar - 11 Mar	Lufthansa
04 Mar - 25 Mar	Lufthansa
04 Mar - 18 Mar	Lufthansa
04 Mar - 10 Mar	Lufthansa
11 Mar - 18 Mar	Lufthansa
10 Mar - 17 Mar	Lufthansa
17 Mar - 25 Mar	Lufthansa
03 Mar - 17 Mar	Lufthansa
19 Mar - 01 Apr	Lufthansa
18 Mar - 01 Apr	Lufthansa
16 Mar - 08 Apr	Lufthansa
16 Mar - 02 Apr	KLM
20 Mar - 01 Apr	Lufthansa
18 Mar - 02 Apr	SWISS
05 Mar - 02 Apr	Lufthansa
22 Mar - 08 Apr	SWISS
23 Mar - 15 Apr	Lufthansa
17 Mar - 06 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 602€

Return flights