AirHint found the following cheapest return flights from Stockholm (ARN) to Porto (OPO) in December 2025 (see full year).

Return flights

28 Dec - 12 Jan	Scandinavian Airlines
31 Dec - 07 Jan	Ryanair
28 Dec - 15 Jan	Ryanair	direct
31 Dec - 06 Jan	Ryanair
28 Dec - 01 Jan	KLM
29 Dec - 01 Jan	KLM
29 Dec - 15 Jan	Ryanair	direct
29 Dec - 19 Jan	Ryanair	direct
28 Dec - 12 Jan	Ryanair	direct
29 Dec - 12 Jan	Ryanair	direct
28 Dec - 31 Dec	Ryanair
28 Dec - 29 Dec	Lufthansa
28 Dec - 29 Dec	Ryanair	direct
28 Dec - 30 Dec	Ryanair

Also check the deals for one-way flights from Stockholm to Porto in December.

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 Stockholm to Porto in December from 219€

Return flights