Cheapest return flights from Cologne to Porto in September from $189

Best time to book flights for Cologne (CGN) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Cologne (CGN) to Porto (OPO) in September 2025 (see full year).

Return flights

08 Sep - 18 Sep Eurowings direct
11 Sep - 25 Sep Eurowings direct
23 Sep - 26 Sep Ryanair direct
03 Sep - 09 Sep Ryanair
23 Sep - 02 Oct Ryanair direct
02 Sep - 09 Sep Ryanair direct
29 Sep - 07 Oct Ryanair
16 Sep - 23 Sep Ryanair
03 Sep - 05 Sep Ryanair
09 Sep - 18 Sep Ryanair direct
02 Sep - 18 Sep Ryanair direct
23 Sep - 07 Oct Ryanair direct
07 Sep - 09 Sep Ryanair
29 Sep - 02 Oct Ryanair
23 Sep - 03 Oct Ryanair direct
30 Sep - 16 Oct Ryanair direct
28 Sep - 02 Oct Ryanair
23 Sep - 09 Oct Ryanair direct
29 Sep - 03 Oct Ryanair
30 Sep - 03 Oct Ryanair

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

Skyscanner

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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