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

Return flights

20 Dec - 09 Jan	Vueling Airlines
01 Dec - 01 Dec	Ryanair
01 Dec - 05 Dec	Ryanair	direct
05 Dec - 08 Dec	Ryanair	direct
19 Dec - 09 Jan	Vueling Airlines
08 Dec - 12 Dec	Ryanair
08 Dec - 15 Dec	Ryanair
05 Dec - 12 Dec	Ryanair
05 Dec - 15 Dec	Ryanair
05 Dec - 09 Dec	Ryanair
08 Dec - 12 Dec	Ryanair	direct
15 Dec - 15 Dec	Ryanair
26 Dec - 02 Jan	Scandinavian Airlines	direct
26 Dec - 09 Jan	Ryanair	direct
26 Dec - 12 Jan	Ryanair	direct
15 Dec - 05 Jan	Ryanair	direct
15 Dec - 02 Jan	Ryanair	direct
26 Dec - 16 Jan	Vueling Airlines
29 Dec - 09 Jan	Vueling Airlines
29 Dec - 12 Jan	Vueling Airlines

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 $143

Return flights