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

Return flights

15 Dec - 05 Jan	Ryanair	direct
19 Dec - 05 Jan	Ryanair	direct
17 Dec - 05 Jan	Vueling Airlines
19 Dec - 08 Jan	Ryanair
08 Dec - 13 Dec	Ryanair
21 Dec - 05 Jan	Vueling Airlines
22 Dec - 05 Jan	Vueling Airlines
08 Dec - 11 Dec	Ryanair
19 Dec - 09 Jan	Ryanair
22 Dec - 12 Jan	Vueling Airlines
02 Dec - 16 Jan	easyJet
18 Dec - 05 Jan	Vueling Airlines
10 Dec - 13 Dec	Ryanair
08 Dec - 12 Dec	Ryanair
08 Dec - 15 Dec	Ryanair
12 Dec - 15 Dec	Ryanair
02 Dec - 09 Dec	easyJet
08 Dec - 10 Dec	Ryanair
12 Dec - 13 Dec	Ryanair
12 Dec - 14 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 $83

Return flights