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

Return flights

27 Oct - 11 Nov	Ryanair
27 Oct - 15 Nov	Ryanair
31 Oct - 11 Nov	Ryanair
05 Oct - 14 Oct	Ryanair	direct
31 Oct - 15 Nov	Ryanair
31 Oct - 21 Nov	Ryanair	direct
27 Oct - 10 Nov	Ryanair
31 Oct - 19 Nov	Ryanair
22 Oct - 11 Nov	Ryanair
27 Oct - 14 Nov	Ryanair	direct
31 Oct - 10 Nov	Ryanair
07 Oct - 14 Oct	Norwegian Air Sweden AOC	direct
05 Oct - 13 Oct	Ryanair
05 Oct - 07 Oct	Ryanair
05 Oct - 08 Oct	Ryanair
27 Oct - 27 Oct	Ryanair
12 Oct - 14 Oct	Ryanair	direct
07 Oct - 09 Oct	easyJet
19 Oct - 25 Oct	Ryanair
08 Oct - 14 Oct	Ryanair	direct

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

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 Copenhagen to Porto in October from $124

Return flights