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

Return flights

14 Mar - 31 Mar	Air China
07 Mar - 14 Mar	Air China
03 Mar - 24 Mar	Air China
07 Mar - 28 Mar	Air China
10 Mar - 24 Mar	Air China
07 Mar - 17 Mar	Air China
03 Mar - 09 Mar	Air China
10 Mar - 23 Mar	Air China
14 Mar - 24 Mar	Air China
07 Mar - 20 Mar	Air China
17 Mar - 01 Apr	Air China
17 Mar - 04 Apr	Air China
12 Mar - 02 Apr	Lufthansa
19 Mar - 17 Apr	Scandinavian Airlines
24 Mar - 20 Apr	Scandinavian Airlines
12 Mar - 03 Apr	Lufthansa
19 Mar - 01 Apr	Lufthansa
22 Mar - 03 Apr	Lufthansa
19 Mar - 14 Apr	Lufthansa
19 Mar - 02 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 $532

Return flights