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

Return flights

13 Mar - 23 Mar	Lufthansa
24 Mar - 31 Mar	Lufthansa
19 Mar - 26 Mar	Lufthansa
09 Mar - 15 Mar	Lufthansa
18 Mar - 25 Mar	Lufthansa
04 Mar - 18 Mar	Lufthansa
03 Mar - 10 Mar	Lufthansa
02 Mar - 23 Mar	Lufthansa
02 Mar - 17 Mar	Lufthansa
02 Mar - 15 Mar	Lufthansa
19 Mar - 02 Apr	Lufthansa
18 Mar - 08 Apr	Lufthansa
23 Mar - 02 Apr	Lufthansa
19 Mar - 07 Apr	Lufthansa
24 Mar - 15 Apr	Lufthansa
12 Mar - 02 Apr	Lufthansa
23 Mar - 08 Apr	Lufthansa
23 Mar - 06 Apr	Lufthansa
05 Mar - 05 Apr	KLM
21 Mar - 01 Apr	SWISS

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 608€

Return flights