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

Return flights

18 Sep - 24 Sep	easyJet
15 Sep - 30 Sep	easyJet
13 Sep - 29 Sep	HiSky Europe	direct
08 Sep - 08 Sep	HiSky Europe
13 Sep - 21 Sep	HiSky Europe
13 Sep - 14 Sep	easyJet
15 Sep - 19 Sep	easyJet
11 Sep - 18 Sep	easyJet
16 Sep - 24 Sep	easyJet
11 Sep - 13 Sep	easyJet
10 Sep - 15 Oct	easyJet
23 Sep - 02 Oct	easyJet
23 Sep - 09 Oct	easyJet
10 Sep - 15 Oct	HiSky Europe	direct
17 Sep - 07 Oct	easyJet
17 Sep - 07 Oct	HiSky Europe	direct
21 Sep - 05 Oct	easyJet
21 Sep - 05 Oct	Air France	direct
23 Sep - 09 Oct	Air France	direct
23 Sep - 02 Oct	Air France	direct

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 148€

Return flights