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

Return flights

09 Mar - 23 Mar	Ryanair
10 Mar - 20 Mar	Air Europa
08 Mar - 10 Mar	Ryanair
01 Mar - 14 Mar	easyJet
19 Mar - 23 Mar	Ryanair
03 Mar - 08 Mar	Wizz Air Malta
16 Mar - 22 Mar	Ryanair
12 Mar - 14 Mar	Ryanair
01 Mar - 13 Mar	Lufthansa
14 Mar - 28 Mar	Lufthansa
28 Mar - 13 Apr	easyJet
19 Mar - 12 Apr	Ryanair
25 Mar - 05 Apr	easyJet
22 Mar - 05 Apr	Wizz Air Malta
28 Mar - 10 Apr	easyJet
28 Mar - 05 Apr	easyJet
28 Mar - 11 Apr	easyJet
26 Mar - 09 Apr	Ryanair
26 Mar - 10 Apr	Ryanair
28 Mar - 12 Apr	easyJet

Also check the deals for one-way flights from Porto 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 Porto to Seoul in March from 553€

Return flights