AirHint found the following cheapest return flights from Olbia (OLB) to Bucharest (OTP) in September 2025 (see full year).

Return flights

17 Sep - 08 Oct	Volotea
15 Sep - 06 Oct	Aeroitalia
17 Sep - 21 Sep	Aeroitalia
17 Sep - 26 Sep	Aeroitalia
13 Sep - 21 Sep	Volotea
22 Sep - 26 Sep	Aeroitalia
15 Sep - 21 Sep	Aeroitalia
15 Sep - 26 Sep	Aeroitalia
08 Sep - 21 Sep	Aeroitalia
08 Sep - 15 Sep	Aeroitalia
08 Sep - 26 Sep	Aeroitalia
05 Sep - 21 Sep	Aeroitalia
29 Sep - 08 Oct	Aeroitalia
22 Sep - 08 Oct	Aeroitalia
17 Sep - 06 Oct	Aeroitalia
29 Sep - 06 Oct	Aeroitalia
22 Sep - 06 Oct	Aeroitalia
17 Sep - 03 Oct	Aeroitalia
29 Sep - 03 Oct	Aeroitalia
22 Sep - 03 Oct	Aeroitalia

Also check the deals for one-way flights from Olbia to Bucharest 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 Olbia to Bucharest in September from 119€

Return flights