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

Return flights

23 Dec - 12 Jan	Vueling Airlines
01 Dec - 01 Dec	Ryanair
05 Dec - 10 Dec	Ryanair
01 Dec - 05 Dec	Ryanair	direct
01 Dec - 10 Dec	Ryanair
05 Dec - 08 Dec	Ryanair	direct
06 Dec - 09 Dec	Air Europa
05 Dec - 12 Dec	Ryanair
01 Dec - 12 Dec	Ryanair
26 Dec - 12 Jan	Ryanair	direct
01 Dec - 02 Dec	Ryanair
06 Dec - 12 Dec	Vueling Airlines
26 Dec - 16 Jan	Vueling Airlines
28 Dec - 02 Jan	Ryanair
23 Dec - 02 Jan	Vueling Airlines
17 Dec - 02 Jan	Vueling Airlines
19 Dec - 02 Jan	Vueling Airlines
26 Dec - 02 Jan	Ryanair	direct
30 Dec - 03 Jan	KLM
19 Dec - 02 Jan	Ryanair	direct

Also check the deals for one-way flights from Porto to Copenhagen 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 Porto to Copenhagen in December from 125€

Return flights