AirHint found the following cheapest return flights from Bucharest (OTP) to Cluj-napoca (CLJ) in September 2025 (see full year).

Return flights

30 Sep - 01 Oct	Wizz Air Malta
15 Sep - 30 Sep	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air Malta
10 Sep - 12 Sep	Wizz Air Malta
29 Sep - 01 Oct	Wizz Air Malta
24 Sep - 30 Sep	Wizz Air Malta
16 Sep - 23 Sep	Wizz Air Malta
26 Sep - 30 Sep	Wizz Air Malta
27 Sep - 28 Sep	Wizz Air Malta
22 Sep - 05 Oct	Wizz Air Malta
15 Sep - 16 Sep	Wizz Air Malta
17 Sep - 23 Sep	Wizz Air Malta
08 Sep - 09 Sep	Wizz Air Malta
09 Sep - 16 Sep	Wizz Air Malta

Also check the deals for one-way flights from Bucharest to Cluj-napoca 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 Bucharest to Cluj-napoca in September from $81

Return flights