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

Return flights

28 Sep - 02 Oct	Ryanair	direct
20 Sep - 30 Sep	easyJet
08 Sep - 17 Sep	easyJet
22 Sep - 02 Oct	easyJet
22 Sep - 28 Sep	easyJet
22 Sep - 27 Sep	easyJet
29 Sep - 16 Oct	easyJet
03 Sep - 05 Sep	Wizz Air
14 Sep - 17 Sep	easyJet
01 Sep - 04 Sep	easyJet
03 Sep - 08 Sep	Wizz Air
04 Sep - 11 Sep	easyJet
01 Sep - 08 Sep	Ryanair
28 Sep - 16 Oct	Ryanair	direct
30 Sep - 16 Oct	Ryanair
25 Sep - 02 Oct	Ryanair	direct
28 Sep - 06 Oct	Ryanair	direct
29 Sep - 05 Oct	Wizz Air
29 Sep - 06 Oct	Wizz Air
14 Sep - 02 Oct	Ryanair	direct

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

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 Krakow to Porto in September from $148

Return flights