Cheapest return flights from Copenhagen to Porto in September from $134

Best time to book flights for Copenhagen (CPH) to Porto (OPO) flights at AirHint

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

Return flights

28 Sep - 08 Oct Ryanair direct
28 Sep - 30 Sep Ryanair
07 Sep - 24 Sep Ryanair
07 Sep - 17 Sep Ryanair
14 Sep - 24 Sep Ryanair
14 Sep - 30 Sep Ryanair
07 Sep - 16 Sep Ryanair
27 Sep - 29 Sep easyJet
14 Sep - 17 Sep Ryanair
28 Sep - 29 Sep Ryanair
28 Sep - 14 Oct Ryanair
28 Sep - 13 Oct Ryanair
28 Sep - 06 Oct Ryanair
14 Sep - 16 Sep Ryanair
28 Sep - 07 Oct Ryanair direct
28 Sep - 14 Oct Ryanair direct
28 Sep - 09 Oct Ryanair
28 Sep - 11 Oct Ryanair
28 Sep - 01 Oct Ryanair direct
21 Sep - 08 Oct Ryanair direct

Also check the deals for one-way flights from Copenhagen 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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