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

Return flights

11 Sep - 18 Sep	Austrian Airlines
08 Sep - 19 Sep	Lufthansa
10 Sep - 17 Sep	Lufthansa
09 Sep - 15 Sep	Lufthansa
12 Sep - 19 Sep	Lufthansa
13 Sep - 20 Sep	Lufthansa
22 Sep - 10 Oct	Air Canada
24 Sep - 18 Oct	Air Canada
23 Sep - 11 Oct	British Airways
26 Sep - 06 Oct	LOT
27 Sep - 11 Oct	Scandinavian Airlines
25 Sep - 08 Oct	SWISS
23 Sep - 04 Oct	British Airways
14 Sep - 04 Oct	British Airways
23 Sep - 29 Sep	SWISS
25 Sep - 18 Oct	SWISS
08 Sep - 04 Oct	Lufthansa
17 Sep - 26 Sep	Air France
10 Sep - 15 Sep	SWISS
25 Sep - 28 Sep	Austrian Airlines

Also check the deals for one-way flights from New York 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 New York to Bucharest in September from $412

Return flights