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

Return flights

03 Sep - 11 Sep	Delta
04 Sep - 11 Sep	Delta
03 Sep - 09 Sep	Delta
05 Sep - 19 Sep	Delta
30 Sep - 07 Oct	United
08 Sep - 15 Sep	United
11 Sep - 24 Sep	United
11 Sep - 30 Sep	United
10 Sep - 17 Sep	United
02 Sep - 02 Oct	United
30 Sep - 08 Oct	United
15 Sep - 30 Sep	Delta
24 Sep - 05 Oct	United
02 Sep - 07 Sep	United
25 Sep - 05 Oct	United
28 Sep - 26 Oct	Delta
29 Sep - 06 Oct	Delta
21 Sep - 09 Oct	United
28 Sep - 02 Oct	Delta
22 Sep - 05 Oct	Qantas

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 657€

Return flights