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

Return flights

20 Sep - 25 Sep	Wizz Air
10 Sep - 26 Sep	Ryanair
29 Sep - 03 Oct	Wizz Air
17 Sep - 25 Sep	Ryanair
01 Sep - 16 Sep	Ryanair
23 Sep - 30 Sep	Ryanair
23 Sep - 24 Sep	Wizz Air
23 Sep - 27 Sep	Wizz Air
15 Sep - 30 Sep	Ryanair
23 Sep - 26 Sep	Wizz Air
10 Sep - 16 Sep	Ryanair
24 Sep - 02 Oct	Ryanair
29 Sep - 05 Oct	Wizz Air
25 Sep - 02 Oct	Wizz Air
28 Sep - 12 Oct	Ryanair	direct
29 Sep - 12 Oct	Ryanair	direct
28 Sep - 05 Oct	Ryanair	direct
29 Sep - 05 Oct	Ryanair	direct
28 Sep - 06 Oct	Ryanair	direct
28 Sep - 16 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 121€

Return flights