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 - 14 Nov	Ryanair	direct
31 Oct - 17 Nov	Ryanair	direct
31 Oct - 04 Nov	Ryanair
27 Oct - 10 Nov	Ryanair
27 Oct - 14 Nov	Ryanair	direct
16 Oct - 23 Oct	easyJet
08 Oct - 15 Oct	easyJet
31 Oct - 21 Nov	Ryanair	direct
07 Oct - 14 Oct	easyJet
07 Oct - 10 Oct	easyJet
21 Oct - 10 Nov	Vueling Airlines
06 Oct - 10 Oct	easyJet
16 Oct - 21 Oct	easyJet
07 Oct - 08 Oct	Norwegian Air Sweden AOC
19 Oct - 21 Oct	Vueling Airlines
27 Oct - 04 Nov	Ryanair
16 Oct - 22 Oct	easyJet
01 Oct - 08 Oct	easyJet

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 100€

Return flights