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

Return flights

19 Dec - 09 Jan	Ryanair	direct
21 Dec - 09 Jan	Vueling Airlines
22 Dec - 09 Jan	Vueling Airlines
08 Dec - 12 Dec	Ryanair
19 Dec - 29 Dec	Ryanair	direct
19 Dec - 29 Dec	Ryanair
01 Dec - 02 Dec	Ryanair
06 Dec - 11 Dec	Vueling Airlines
02 Dec - 04 Dec	easyJet
08 Dec - 09 Dec	Ryanair
02 Dec - 05 Dec	easyJet
19 Dec - 05 Jan	Ryanair
02 Dec - 07 Dec	easyJet
19 Dec - 07 Jan	Ryanair
19 Dec - 08 Jan	Ryanair
08 Dec - 15 Dec	Ryanair
19 Dec - 04 Jan	Ryanair
31 Dec - 09 Jan	Vueling Airlines
21 Dec - 05 Jan	Vueling Airlines
21 Dec - 02 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 100€

Return flights