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

Return flights

24 Sep - 05 Oct	Ryanair	direct
17 Sep - 05 Oct	Ryanair	direct
24 Sep - 08 Oct	Ryanair	direct
26 Sep - 29 Sep	Ryanair
13 Sep - 17 Sep	Ryanair
17 Sep - 08 Oct	Ryanair	direct
21 Sep - 05 Oct	Ryanair	direct
01 Sep - 05 Sep	Volotea
24 Sep - 28 Sep	Ryanair	direct
17 Sep - 28 Sep	Ryanair	direct
03 Sep - 08 Sep	Ryanair
21 Sep - 08 Oct	Ryanair	direct
16 Sep - 20 Sep	Ryanair
10 Sep - 17 Sep	Ryanair
03 Sep - 17 Sep	Ryanair	direct
26 Sep - 28 Sep	Ryanair
29 Sep - 03 Oct	Wizz Air Malta
24 Sep - 15 Oct	Ryanair	direct
28 Sep - 01 Oct	Ryanair
24 Sep - 12 Oct	Ryanair	direct

Also check the deals for one-way flights from Pisa 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 Pisa to Porto in September from 148€

Return flights