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

Return flights

04 Sep - 06 Sep	Volotea
08 Sep - 15 Sep	Aeroitalia
12 Sep - 15 Sep	Aeroitalia
08 Sep - 21 Sep	Aeroitalia
12 Sep - 21 Sep	Aeroitalia
15 Sep - 03 Oct	Aeroitalia
15 Sep - 21 Sep	Aeroitalia
14 Sep - 15 Sep	Aeroitalia
21 Sep - 03 Oct	Aeroitalia
14 Sep - 03 Oct	Aeroitalia
05 Sep - 15 Sep	Aeroitalia
05 Sep - 21 Sep	Aeroitalia
01 Sep - 15 Sep	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 $157

Return flights