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

Return flights

04 Sep - 17 Sep	Spirit Airlines
27 Sep - 07 Oct	Frontier Airlines
11 Sep - 21 Sep	Frontier Airlines
21 Sep - 01 Oct	Frontier Airlines
09 Sep - 19 Sep	jetBlue
13 Sep - 23 Sep	jetBlue
03 Sep - 13 Sep	Frontier Airlines
29 Sep - 09 Oct	Frontier Airlines
05 Sep - 15 Sep	Frontier Airlines
19 Sep - 29 Sep	Avianca
23 Sep - 03 Oct	Frontier Airlines
25 Sep - 05 Oct	Frontier Airlines
07 Sep - 17 Sep	jetBlue
01 Sep - 11 Sep	Frontier Airlines
01 Sep - 20 Sep	Avianca

Also check the deals for one-way flights from New York to Manaus 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 Manaus in September from $437

Return flights