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

Return flights

03 Sep - 17 Sep	United
25 Sep - 02 Oct	United
16 Sep - 07 Oct	United
03 Sep - 10 Sep	Delta
10 Sep - 16 Sep	Delta
21 Sep - 28 Sep	Air India
02 Sep - 12 Sep	Delta
18 Sep - 23 Sep	Air India
18 Sep - 06 Oct	Air India
27 Sep - 10 Oct	United
05 Sep - 19 Sep	United
27 Sep - 04 Oct	United
22 Sep - 25 Sep	IndiGo
29 Sep - 08 Oct	ANA
12 Sep - 18 Sep	Air Canada
13 Sep - 18 Sep	Delta
30 Sep - 06 Oct	Delta
25 Sep - 02 Oct	Singapore Airlines	direct
29 Sep - 08 Oct	Singapore Airlines	direct
27 Sep - 04 Oct	Singapore Airlines	direct

Also check the deals for one-way flights from New York to Singapore 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 Singapore in September from $751

Return flights