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

Return flights

29 Aug - 17 Sep	Vueling Airlines
29 Aug - 08 Sep	Ryanair
27 Aug - 17 Sep	Vueling Airlines
27 Aug - 09 Sep	Ryanair
26 Aug - 15 Sep	Vueling Airlines
29 Aug - 18 Sep	Vueling Airlines
29 Aug - 15 Sep	Vueling Airlines
30 Aug - 06 Sep	SWISS
27 Aug - 15 Sep	Vueling Airlines
26 Aug - 11 Sep	Vueling Airlines
29 Aug - 31 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
06 Aug - 20 Aug	Austrian Airlines
06 Aug - 12 Aug	Austrian Airlines
21 Aug - 28 Aug	Ryanair
20 Aug - 28 Aug	Ryanair
26 Aug - 27 Aug	Vueling Airlines
21 Aug - 26 Aug	Ryanair
21 Aug - 25 Aug	Ryanair
25 Aug - 29 Aug	Ryanair

Also check the deals for one-way flights from Naples to Porto 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 Naples to Porto in August from 171€

Return flights