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

Return flights

31 Aug - 10 Sep	Ryanair	direct
31 Aug - 17 Sep	Ryanair	direct
31 Aug - 03 Sep	Ryanair
31 Aug - 09 Sep	Ryanair
31 Aug - 18 Sep	Ryanair
31 Aug - 07 Sep	Ryanair
31 Aug - 04 Sep	Ryanair
31 Aug - 11 Sep	Ryanair
31 Aug - 18 Sep	Ryanair	direct
31 Aug - 16 Sep	Ryanair	direct
30 Aug - 31 Aug	TAP
31 Aug - 31 Aug	Ryanair
29 Aug - 30 Aug	Vueling Airlines
29 Aug - 29 Aug	Vueling Airlines
29 Aug - 31 Aug	Scandinavian Airlines	direct

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

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Copenhagen to Porto in August from $190

Return flights