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

Return flights

07 Dec - 07 Jan	Air Canada
11 Dec - 27 Jan	Air Canada
11 Dec - 25 Dec	Delta
15 Dec - 14 Jan	Delta
14 Dec - 27 Jan	Delta
12 Dec - 27 Jan	Air Canada
28 Dec - 13 Jan	Delta
27 Dec - 13 Jan	Delta
27 Dec - 14 Jan	Delta
15 Dec - 29 Dec	Delta
12 Dec - 27 Dec	Delta
12 Dec - 29 Dec	Delta
13 Dec - 27 Jan	Delta
11 Dec - 31 Dec	Delta
27 Dec - 15 Jan	Delta
18 Dec - 28 Dec	Delta
20 Dec - 27 Dec	Air Canada

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 $1583

Return flights