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

Return flights

08 Jan - 22 Jan	Ryanair	direct
01 Jan - 22 Jan	Ryanair	direct
03 Jan - 22 Jan	Ryanair	direct
08 Jan - 26 Jan	Ryanair	direct
08 Jan - 25 Jan	Ryanair	direct
23 Jan - 26 Jan	Ryanair	direct
22 Jan - 25 Jan	Ryanair	direct
23 Jan - 25 Jan	Ryanair	direct
22 Jan - 26 Jan	Ryanair	direct
08 Jan - 10 Jan	Ryanair	direct

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 92€

Return flights