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

Return flights

19 Dec - 08 Jan	Ryanair
20 Dec - 09 Jan	Vueling Airlines
22 Dec - 09 Jan	Vueling Airlines
22 Dec - 12 Jan	Vueling Airlines
08 Dec - 12 Dec	Ryanair
23 Dec - 09 Jan	Vueling Airlines
23 Dec - 12 Jan	Vueling Airlines
18 Dec - 08 Jan	Vueling Airlines
24 Dec - 09 Jan	Vueling Airlines
24 Dec - 12 Jan	Vueling Airlines
20 Dec - 08 Jan	Vueling Airlines
08 Dec - 15 Dec	Ryanair
08 Dec - 16 Dec	Ryanair
01 Dec - 05 Dec	easyJet
15 Dec - 15 Dec	Ryanair
15 Dec - 16 Dec	Ryanair
10 Dec - 15 Dec	Vueling Airlines
12 Dec - 13 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
12 Dec - 16 Dec	Ryanair

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 123€

Return flights