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

Return flights

03 Sep - 22 Sep	Vueling Airlines
02 Sep - 16 Sep	Transavia France
15 Sep - 17 Sep	Transavia France
25 Sep - 29 Sep	Transavia France
30 Sep - 02 Oct	Transavia France
17 Sep - 24 Sep	Wizz Air Malta
11 Sep - 15 Sep	easyJet
25 Sep - 27 Sep	Transavia France
15 Sep - 16 Sep	Transavia France
22 Sep - 31 Oct	Transavia France
18 Sep - 24 Sep	easyJet
23 Sep - 25 Sep	Transavia France
10 Sep - 15 Oct	Transavia France
29 Sep - 06 Oct	Wizz Air Malta
29 Sep - 05 Oct	Transavia France
22 Sep - 03 Oct	easyJet

Also check the deals for one-way flights from Paris 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 Paris to Bucharest in September from 105€

Return flights