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

Return flights

28 Aug - 03 Sep	easyJet
27 Aug - 03 Sep	Vueling Airlines
26 Aug - 03 Sep	Vueling Airlines
28 Aug - 04 Sep	easyJet
28 Aug - 06 Sep	easyJet
28 Aug - 01 Sep	easyJet
30 Aug - 03 Sep	Ryanair
27 Aug - 31 Aug	Vueling Airlines
25 Aug - 28 Aug	easyJet
27 Aug - 04 Sep	Vueling Airlines
25 Aug - 07 Sep	easyJet
27 Aug - 10 Sep	Vueling Airlines
25 Aug - 31 Aug	easyJet
25 Aug - 27 Aug	easyJet
20 Aug - 25 Aug	TAP
21 Aug - 25 Aug	Vueling Airlines
19 Aug - 25 Aug	TAP
26 Aug - 30 Aug	Vueling Airlines
25 Aug - 29 Aug	easyJet
25 Aug - 30 Aug	easyJet

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

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 August from $224

Return flights