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

Return flights

09 Sep - 12 Sep	Wizz Air Malta
03 Sep - 09 Sep	Ryanair
08 Sep - 12 Sep	Wizz Air Malta
03 Sep - 08 Sep	Vueling Airlines
02 Sep - 09 Sep	Vueling Airlines
25 Sep - 29 Sep	easyJet
27 Sep - 04 Oct	Ryanair
06 Sep - 12 Sep	easyJet
11 Sep - 16 Sep	Wizz Air Malta
01 Sep - 09 Sep	Wizz Air Malta
12 Sep - 20 Sep	Wizz Air Malta
20 Sep - 31 Oct	easyJet
20 Sep - 30 Oct	easyJet

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 $162

Return flights