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

Return flights

05 Mar - 12 Mar	Lufthansa
05 Mar - 18 Mar	Lufthansa
10 Mar - 24 Mar	Lufthansa
03 Mar - 17 Mar	Lufthansa
10 Mar - 25 Mar	Lufthansa
05 Mar - 11 Mar	Lufthansa
03 Mar - 24 Mar	Lufthansa
03 Mar - 10 Mar	Lufthansa
17 Mar - 25 Mar	Lufthansa
10 Mar - 17 Mar	Lufthansa
18 Mar - 01 Apr	Lufthansa
24 Mar - 02 Apr	SWISS
19 Mar - 02 Apr	Lufthansa
23 Mar - 01 Apr	SWISS
18 Mar - 02 Apr	KLM
19 Mar - 15 Apr	Lufthansa
18 Mar - 08 Apr	Lufthansa
30 Mar - 13 Apr	KLM
31 Mar - 11 Apr	Air Dolomiti
12 Mar - 05 Apr	Air Dolomiti

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 637€

Return flights