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

Return flights

15 Jan - 31 Jan	Ryanair
15 Jan - 29 Jan	Ryanair
14 Jan - 31 Jan	Ryanair
16 Jan - 31 Jan	Ryanair
26 Jan - 31 Jan	Ryanair
08 Jan - 21 Jan	Ryanair
18 Jan - 25 Jan	Ryanair
07 Jan - 25 Jan	Ryanair
25 Jan - 04 Feb	Ryanair
08 Jan - 24 Jan	Ryanair
15 Jan - 02 Feb	Ryanair
06 Jan - 22 Jan	TAP
27 Jan - 17 Feb	Air Europa
25 Jan - 11 Feb	Ryanair
27 Jan - 03 Feb	Iberia
10 Jan - 10 Feb	Ryanair
27 Jan - 04 Feb	Air Europa
29 Jan - 12 Feb	Ryanair
20 Jan - 09 Feb	Lufthansa
15 Jan - 01 Feb	Lufthansa

Also check the deals for one-way flights from Porto to Seoul in January.

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 January from 490€

Return flights