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

Return flights

04 Dec - 11 Dec	Spirit Airlines
10 Dec - 15 Dec	Air Canada
03 Dec - 16 Jan	Delta
27 Dec - 13 Jan	Air Canada
27 Dec - 14 Jan	Air Canada
12 Dec - 20 Jan	Air Canada
11 Dec - 27 Dec	Air Canada
27 Dec - 12 Jan	Delta
27 Dec - 11 Jan	Air Canada
15 Dec - 22 Dec	Delta
13 Dec - 23 Jan	Delta
22 Dec - 29 Dec	Delta
25 Dec - 31 Dec	Delta
23 Dec - 07 Jan	Delta
13 Dec - 07 Jan	Delta
24 Dec - 04 Jan	Delta
19 Dec - 26 Dec	Delta
14 Dec - 21 Dec	Qantas

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 1071€

Return flights