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

Return flights

10 Sep - 13 Sep	Ryanair	direct
10 Sep - 17 Sep	Ryanair	direct
06 Sep - 13 Sep	Ryanair	direct
06 Sep - 10 Sep	Ryanair	direct
13 Sep - 17 Sep	Ryanair	direct
17 Sep - 24 Sep	Ryanair	direct
20 Sep - 24 Sep	Ryanair	direct
20 Sep - 27 Sep	Ryanair	direct
13 Sep - 16 Sep	Ryanair
23 Sep - 01 Oct	Ryanair
10 Sep - 15 Sep	Ryanair
27 Sep - 01 Oct	Ryanair
24 Sep - 04 Oct	Ryanair
27 Sep - 02 Oct	Ryanair
23 Sep - 07 Oct	Norwegian	direct
23 Sep - 14 Oct	Norwegian
28 Sep - 02 Oct	Air Serbia
25 Sep - 14 Oct	Norwegian
22 Sep - 07 Oct	Norwegian Air Sweden AOC
23 Sep - 02 Oct	Norwegian

Also check the deals for one-way flights from Oslo 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 Oslo to Dubrovnik in September from $46

Return flights