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

Return flights

30 Sep - 07 Oct	Transavia France
30 Sep - 01 Oct	Transavia France
30 Sep - 04 Oct	Transavia France
29 Sep - 07 Oct	Ryanair
23 Sep - 30 Sep	Transavia France
17 Sep - 24 Sep	easyJet
16 Sep - 23 Sep	Transavia France
09 Sep - 17 Sep	Transavia France
24 Sep - 30 Sep	Ryanair
29 Sep - 03 Oct	Ryanair
13 Sep - 17 Sep	Ryanair
26 Sep - 30 Sep	Vueling Airlines
21 Sep - 01 Oct	easyJet
14 Sep - 17 Sep	easyJet
27 Sep - 01 Oct	Ryanair
22 Sep - 30 Sep	Vueling Airlines
27 Sep - 04 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
19 Sep - 23 Sep	Wizz Air Malta
19 Sep - 04 Oct	Ryanair

Also check the deals for one-way flights from Porto to Split 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 Porto to Split in September from 127€

Return flights