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 - 25 Mar	LOT
15 Mar - 25 Mar	LOT
08 Mar - 18 Mar	LOT
01 Mar - 13 Mar	Lufthansa
12 Mar - 26 Mar	Lufthansa
05 Mar - 15 Mar	Lufthansa
25 Mar - 29 Mar	Finnair
14 Mar - 28 Mar	Air France
13 Mar - 27 Mar	Air France
27 Mar - 02 Apr	LOT
27 Mar - 03 Apr	Finnair
29 Mar - 10 Apr	Finnair
29 Mar - 12 Apr	Finnair
28 Mar - 12 Apr	Finnair
21 Mar - 05 Apr	Air France
28 Mar - 10 Apr	Finnair
22 Mar - 05 Apr	Air France
22 Mar - 05 Apr	Korean Air	direct
29 Mar - 10 Apr	Korean Air	direct

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 621€

Return flights