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

Return flights

03 Dec - 07 Dec	Turkish Airlines
01 Dec - 31 Jan	Turkish Airlines
01 Dec - 13 Dec	Turkish Airlines
01 Dec - 04 Dec	Turkish Airlines
25 Dec - 12 Jan	Turkish Airlines
29 Dec - 04 Jan	Xiamen Airlines
26 Dec - 10 Jan	Xiamen Airlines
26 Dec - 13 Jan	Gulf Air
28 Dec - 14 Jan	Cathay Pacific
12 Dec - 19 Dec	Turkish Airlines
27 Dec - 13 Jan	Singapore Airlines
29 Dec - 05 Jan	Xiamen Airlines
12 Dec - 26 Dec	Norse Atlantic Airways
25 Dec - 10 Jan	Finnair
25 Dec - 11 Jan	Finnair
02 Dec - 04 Dec	Delta
03 Dec - 10 Dec	Delta
25 Dec - 30 Dec	Finnair
23 Dec - 30 Dec	IndiGo
23 Dec - 28 Dec	IndiGo

Also check the deals for one-way flights from New York to Singapore in December.

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 December from $898

Return flights