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

Return flights

12 Mar - 20 Mar	Ryanair
02 Mar - 16 Mar	Ryanair
24 Mar - 01 Apr	Ryanair
14 Mar - 21 Mar	Ryanair
17 Mar - 13 Apr	Ryanair
04 Mar - 12 Mar	Ryanair
20 Mar - 27 Mar	Ryanair
18 Mar - 26 Mar	Ryanair
14 Mar - 23 Mar	Ryanair
05 Mar - 16 Mar	Ryanair
20 Mar - 30 Mar	Ryanair
06 Mar - 14 Mar	Ryanair
26 Mar - 03 Apr	Ryanair
30 Mar - 20 Apr	Ryanair
03 Mar - 03 Apr	Ryanair
26 Mar - 05 Apr	Ryanair
28 Mar - 06 Apr	Ryanair
20 Mar - 10 Apr	Ryanair
21 Mar - 08 Apr	Ryanair
29 Mar - 10 Apr	Ryanair

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 $629

Return flights