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

Return flights

31 Dec - 16 Jan	Icelandair
09 Dec - 15 Dec	Austrian Airlines
31 Dec - 19 Jan	Icelandair
31 Dec - 20 Jan	British Airways
31 Dec - 12 Jan	British Airways
04 Dec - 08 Dec	Lufthansa
05 Dec - 13 Dec	Lufthansa
08 Dec - 15 Dec	Lufthansa
30 Dec - 25 Jan	British Airways
10 Dec - 19 Dec	Icelandair
04 Dec - 15 Dec	Air Canada
10 Dec - 15 Dec	Icelandair
09 Dec - 16 Jan	British Airways
06 Dec - 09 Dec	Lufthansa
31 Dec - 18 Jan	Austrian Airlines
05 Dec - 09 Dec	Lufthansa
07 Dec - 23 Dec	Air Canada
30 Dec - 19 Jan	British Airways
10 Dec - 11 Jan	British Airways
08 Dec - 14 Jan	Norse Atlantic Airways (UK)

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 $384

Return flights