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

Return flights

09 Dec - 25 Dec	Air Canada
10 Dec - 16 Dec	Air Canada
07 Dec - 13 Dec	Air Canada
06 Dec - 12 Dec	Air Canada
09 Dec - 16 Dec	Delta
31 Dec - 24 Jan	British Airways
31 Dec - 14 Jan	Delta
31 Dec - 13 Jan	Delta
31 Dec - 15 Jan	Delta
30 Dec - 24 Jan	British Airways
05 Dec - 13 Dec	Air Canada
31 Dec - 12 Jan	Lufthansa
06 Dec - 21 Dec	Air Canada
11 Dec - 18 Dec	Air Canada
15 Dec - 24 Dec	Air Canada
11 Dec - 15 Jan	Air Canada
25 Dec - 17 Jan	British Airways
02 Dec - 09 Dec	Delta
30 Dec - 14 Jan	Air Canada
28 Dec - 12 Jan	Air Canada

Also check the deals for one-way flights from New York to Istanbul 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 Istanbul in December from $492

Return flights