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

Return flights

02 Sep - 17 Sep	Delta
02 Sep - 16 Sep	Delta
15 Sep - 22 Sep	Delta
01 Sep - 08 Sep	Delta
10 Sep - 21 Sep	Delta
07 Sep - 23 Sep	Delta
06 Sep - 23 Sep	Delta
03 Sep - 12 Sep	Delta
12 Sep - 24 Sep	Delta
30 Sep - 09 Oct	United
30 Sep - 08 Oct	United
30 Sep - 07 Oct	United
30 Sep - 16 Oct	United
12 Sep - 19 Sep	Delta
15 Sep - 03 Oct	United
25 Sep - 05 Oct	United
23 Sep - 01 Oct	SWISS
27 Sep - 06 Oct	SWISS
25 Sep - 06 Oct	SWISS
26 Sep - 06 Oct	SWISS

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 655€

Return flights