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

Return flights

04 Sep - 07 Sep	Ryanair
03 Sep - 06 Sep	Vueling Airlines
03 Sep - 13 Sep	Vueling Airlines
03 Sep - 07 Sep	Vueling Airlines
11 Sep - 13 Sep	Vueling Airlines
12 Sep - 13 Sep	Vueling Airlines
03 Sep - 12 Sep	Vueling Airlines
11 Sep - 12 Sep	Vueling Airlines
04 Sep - 06 Sep	Vueling Airlines
04 Sep - 13 Sep	Vueling Airlines

Also check the deals for one-way flights from Dubrovnik to Porto 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 Dubrovnik to Porto in September from $250

Return flights