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

Return flights

09 Sep - 16 Sep	Air India
15 Sep - 24 Sep	Air India
17 Sep - 24 Sep	Air India
22 Sep - 07 Oct	Air India
17 Sep - 25 Sep	Air India
10 Sep - 18 Sep	Air India
23 Sep - 02 Oct	Delta
23 Sep - 21 Oct	Korean Air
18 Sep - 23 Sep	Delta
11 Sep - 18 Sep	Air India
24 Sep - 30 Sep	Korean Air
15 Sep - 30 Sep	Korean Air
23 Sep - 30 Sep	Korean Air
24 Sep - 05 Oct	Delta
23 Sep - 03 Oct	Delta
15 Sep - 03 Oct	Delta
30 Sep - 05 Oct	Air India
25 Sep - 05 Oct	Ethiopian Airlines
28 Sep - 12 Oct	Ethiopian Airlines
30 Sep - 13 Oct	Air India

Also check the deals for one-way flights from Newark 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 Newark to Singapore in September from $736

Return flights