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

Return flights

07 Oct - 14 Oct	Vueling Airlines
07 Oct - 16 Oct	Vueling Airlines
03 Oct - 06 Oct	Vueling Airlines
16 Oct - 24 Oct	SWISS
25 Oct - 04 Nov	SWISS
29 Oct - 04 Nov	Ryanair
25 Oct - 02 Nov	Vueling Airlines
03 Oct - 10 Oct	easyJet
28 Oct - 04 Nov	Croatia Airlines
30 Oct - 04 Nov	Croatia Airlines
13 Oct - 16 Oct	Vueling Airlines
02 Oct - 06 Oct	Vueling Airlines
02 Oct - 16 Oct	Vueling Airlines
30 Oct - 30 Oct	Croatia Airlines
07 Oct - 09 Oct	Vueling Airlines

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 122€

Return flights