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

Return flights

07 Mar - 17 Mar	Air China
07 Mar - 24 Mar	Air China
07 Mar - 14 Mar	Air China
07 Mar - 22 Mar	Air China
07 Mar - 23 Mar	Air China
14 Mar - 31 Mar	Air China
07 Mar - 25 Mar	Air China
16 Mar - 30 Mar	Lufthansa
09 Mar - 23 Mar	Lufthansa
12 Mar - 16 Mar	Lufthansa
18 Mar - 01 Apr	Lufthansa
13 Mar - 01 Apr	Lufthansa
07 Mar - 04 Apr	Air China
14 Mar - 01 Apr	Lufthansa
22 Mar - 08 Apr	Lufthansa
18 Mar - 05 Apr	Lufthansa
14 Mar - 18 Apr	Air China
30 Mar - 07 Apr	SWISS
23 Mar - 16 Apr	Lufthansa
31 Mar - 08 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 $519

Return flights