AirHint found the following cheapest return flights from Cologne (CGN) to Porto (OPO) in January 2026 (see full year).

Return flights

12 Jan - 15 Jan	Ryanair	direct
19 Jan - 22 Jan	Ryanair	direct
24 Jan - 29 Jan	Ryanair	direct
31 Jan - 07 Feb	Ryanair	direct
03 Jan - 10 Jan	Ryanair
02 Jan - 08 Jan	Ryanair
02 Jan - 08 Jan	Ryanair	direct
29 Jan - 30 Jan	Ryanair
03 Jan - 10 Jan	Ryanair	direct
01 Jan - 05 Jan	Ryanair
01 Jan - 04 Jan	Ryanair

Also check the deals for one-way flights from Cologne to Porto in January.

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 Cologne to Porto in January from 82€

Return flights