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

Return flights

31 Oct - 18 Nov	Ryanair
31 Oct - 10 Nov	Ryanair
31 Oct - 12 Nov	Ryanair
19 Oct - 22 Oct	Vueling Airlines
31 Oct - 19 Nov	Ryanair
21 Oct - 10 Nov	Vueling Airlines
31 Oct - 17 Nov	Ryanair
18 Oct - 22 Oct	Vueling Airlines
18 Oct - 21 Oct	Vueling Airlines
20 Oct - 24 Oct	Vueling Airlines
05 Oct - 11 Oct	Ryanair
19 Oct - 24 Oct	Ryanair
27 Oct - 10 Nov	Vueling Airlines
31 Oct - 05 Nov	Ryanair
31 Oct - 06 Nov	Ryanair
01 Oct - 06 Oct	Ryanair
31 Oct - 15 Nov	Ryanair
18 Oct - 24 Oct	Vueling Airlines
20 Oct - 23 Oct	Vueling Airlines
05 Oct - 15 Oct	Ryanair

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 $115

Return flights