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

Return flights

09 Dec - 15 Dec	Austrian Airlines
31 Dec - 19 Jan	Lufthansa
08 Dec - 15 Dec	Lufthansa
10 Dec - 19 Dec	Icelandair
30 Dec - 25 Jan	British Airways
30 Dec - 15 Jan	British Airways
31 Dec - 20 Jan	KLM
31 Dec - 12 Jan	KLM
04 Dec - 10 Dec	Air Canada
08 Dec - 21 Jan	Norse Atlantic Airways (UK)
10 Dec - 15 Dec	Icelandair
15 Dec - 19 Dec	HiSky Europe
26 Dec - 14 Jan	HiSky Europe
09 Dec - 16 Dec	Lufthansa
24 Dec - 15 Jan	HiSky Europe
30 Dec - 31 Jan	British Airways
30 Dec - 18 Jan	British Airways
08 Dec - 12 Dec	Iberia
07 Dec - 14 Dec	Air France
04 Dec - 15 Dec	LOT

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 432€

Return flights