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

Return flights

15 Oct - 22 Oct	easyJet
07 Oct - 14 Oct	Vueling Airlines
15 Oct - 17 Oct	Volotea
16 Oct - 22 Oct	easyJet
20 Oct - 07 Nov	SWISS
01 Oct - 08 Oct	Volotea
16 Oct - 23 Oct	easyJet
06 Oct - 10 Oct	Wizz Air UK
17 Oct - 21 Oct	easyJet
18 Oct - 23 Oct	Ryanair
06 Oct - 13 Oct	Wizz Air UK
28 Oct - 04 Nov	Croatia Airlines
25 Oct - 01 Nov	Ryanair
30 Oct - 03 Nov	Croatia Airlines
25 Oct - 02 Nov	Ryanair

Also check the deals for one-way flights from Split to Porto in October.

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 Split to Porto in October from 128€

Return flights