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

Return flights

06 Aug - 13 Aug	Ryanair
12 Aug - 17 Aug	Ryanair
11 Aug - 13 Aug	Ryanair
26 Aug - 31 Aug	Vueling Airlines
06 Aug - 10 Aug	Ryanair
28 Aug - 02 Sep	Ryanair
07 Aug - 10 Aug	Ryanair
10 Aug - 13 Aug	Ryanair
13 Aug - 17 Aug	Ryanair
31 Aug - 21 Sep	Vueling Airlines
12 Aug - 14 Aug	Ryanair
12 Aug - 21 Aug	Ryanair
26 Aug - 02 Sep	Vueling Airlines
26 Aug - 14 Sep	Vueling Airlines
28 Aug - 14 Sep	Vueling Airlines
27 Aug - 02 Sep	Vueling Airlines
27 Aug - 14 Sep	Vueling Airlines
27 Aug - 02 Sep	Ryanair	direct
27 Aug - 14 Sep	Ryanair	direct
29 Aug - 03 Sep	Ryanair

Also check the deals for one-way flights from Porto to Copenhagen in August.

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 August from 176€

Return flights