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

Return flights

14 Mar - 21 Mar	TAP
11 Mar - 15 Mar	Iberia
13 Mar - 17 Mar	Vueling Airlines
13 Mar - 16 Mar	Vueling Airlines
08 Mar - 18 Mar	LOT
01 Mar - 21 Mar	LOT
08 Mar - 21 Mar	LOT
07 Mar - 21 Mar	LOT
07 Mar - 14 Mar	LOT
06 Mar - 20 Mar	Lufthansa
21 Mar - 06 Apr	LOT
29 Mar - 07 Apr	LOT
27 Mar - 03 Apr	Finnair
27 Mar - 08 Apr	Finnair
20 Mar - 05 Apr	Finnair
29 Mar - 12 Apr	Finnair
27 Mar - 12 Apr	Finnair
27 Mar - 05 Apr	Finnair
19 Mar - 05 Apr	Air France
29 Mar - 11 Apr	LOT

Also check the deals for one-way flights from Lisbon 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 Lisbon to Seoul in March from $731

Return flights