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

Return flights

30 Sep - 07 Oct	easyJet
23 Sep - 27 Sep	Ryanair
29 Sep - 07 Oct	Wizz Air Malta
19 Sep - 23 Sep	Volotea
17 Sep - 23 Sep	Ryanair
27 Sep - 01 Oct	Ryanair
17 Sep - 22 Sep	Ryanair
18 Sep - 22 Sep	Ryanair
16 Sep - 30 Sep	Ryanair
22 Sep - 24 Sep	Vueling Airlines
13 Sep - 16 Sep	KLM
27 Sep - 04 Oct	Vueling Airlines
13 Sep - 23 Sep	Vueling Airlines
12 Sep - 23 Sep	Vueling Airlines
13 Sep - 04 Oct	Vueling Airlines
27 Sep - 09 Oct	Vueling Airlines
27 Sep - 05 Oct	Vueling Airlines

Also check the deals for one-way flights from Porto to Dubrovnik 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 Porto to Dubrovnik in September from $191

Return flights