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

Return flights

08 Mar - 18 Mar	Lufthansa
08 Mar - 21 Mar	Lufthansa
08 Mar - 15 Mar	Lufthansa
14 Mar - 29 Mar	Air China
03 Mar - 17 Mar	China Southern
03 Mar - 16 Mar	Lufthansa
05 Mar - 13 Mar	Lufthansa
16 Mar - 30 Mar	Lufthansa
05 Mar - 11 Mar	Lufthansa
12 Mar - 20 Mar	Lufthansa
18 Mar - 01 Apr	Lufthansa
19 Mar - 02 Apr	Lufthansa
19 Mar - 06 Apr	Lufthansa
18 Mar - 08 Apr	Lufthansa
22 Mar - 21 Apr	Lufthansa
17 Mar - 07 Apr	Lufthansa
18 Mar - 07 Apr	Lufthansa
02 Mar - 06 Apr	Lufthansa
22 Mar - 03 Apr	Lufthansa
21 Mar - 15 Apr	Scandinavian Airlines

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 413€

Return flights