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

Return flights

04 Mar - 25 Mar	Ryanair
05 Mar - 13 Mar	Ryanair
25 Mar - 01 Apr	Wizz Air UK
20 Mar - 03 Apr	Wizz Air UK
09 Mar - 16 Mar	Ryanair
24 Mar - 03 Apr	Wizz Air UK
20 Mar - 31 Mar	Ryanair
20 Mar - 27 Mar	Ryanair
24 Mar - 15 Apr	Wizz Air UK
30 Mar - 05 Apr	Wizz Air
30 Mar - 07 Apr	Wizz Air
13 Mar - 27 Mar	Wizz Air UK
30 Mar - 09 Apr	Wizz Air
28 Mar - 07 Apr	Wizz Air Malta
26 Mar - 10 Apr	Wizz Air UK
26 Mar - 02 Apr	easyJet
11 Mar - 18 Mar	easyJet
14 Mar - 18 Mar	easyJet
11 Mar - 25 Mar	easyJet
17 Mar - 27 Mar	easyJet

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 673€

Return flights