AirHint found the following cheapest one-way flights from Cologne (CGN) to Porto (OPO) in October 2025 (see full year).

One-Way flights

28 Oct	Ryanair	direct
27 Oct	Ryanair	direct
25 Oct	Eurowings	direct
23 Oct	Eurowings	direct
31 Oct	Ryanair	direct
26 Oct	Ryanair	direct
20 Oct	Eurowings	direct
21 Oct	Ryanair
24 Oct	Ryanair	direct
29 Oct	Ryanair

Also check the deals for return flights from Cologne 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest one-way flights from Cologne to Porto in October from 25€

One-Way flights