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

Return flights

04 Sep - 18 Sep	Air Canada
13 Sep - 04 Oct	Air Canada
23 Sep - 30 Sep	Air Canada
23 Sep - 24 Oct	American Airlines
01 Sep - 14 Sep	Air Canada
01 Sep - 15 Sep	Air Canada
22 Sep - 29 Sep	Air Canada
28 Sep - 18 Oct	Air Canada
21 Sep - 28 Sep	Delta
30 Sep - 07 Oct	Delta
21 Sep - 12 Oct	Delta
27 Sep - 04 Oct	Delta
28 Sep - 05 Oct	Delta
15 Sep - 17 Sep	Delta
29 Sep - 19 Oct	Delta
25 Sep - 30 Sep	Delta
26 Sep - 01 Oct	Delta
13 Sep - 21 Sep	Air Canada
05 Sep - 19 Sep	Air Canada
29 Sep - 06 Oct	United

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 $436

Return flights