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

Return flights

02 Sep - 17 Sep	Delta
03 Sep - 10 Sep	Delta
02 Sep - 10 Sep	Delta
01 Sep - 11 Sep	Delta
08 Sep - 15 Sep	Delta
02 Sep - 12 Sep	Delta
10 Sep - 24 Sep	Korean Air
09 Sep - 16 Sep	Korean Air
14 Sep - 21 Sep	Delta
11 Sep - 16 Sep	United
29 Sep - 03 Oct	United
07 Sep - 06 Oct	United
25 Sep - 05 Oct	Delta
28 Sep - 03 Oct	United
28 Sep - 05 Oct	United

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 655€

Return flights