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

Return flights

03 Dec - 12 Dec	Icelandair
03 Dec - 08 Dec	Icelandair
13 Dec - 09 Jan	Icelandair
04 Dec - 10 Dec	Iberia
04 Dec - 09 Dec	Iberia
24 Dec - 09 Jan	Icelandair
31 Dec - 23 Jan	Icelandair
04 Dec - 15 Dec	Iberia
08 Dec - 16 Dec	Air France
08 Dec - 19 Dec	Air France
30 Dec - 13 Jan	Air France
03 Dec - 15 Dec	Norse Atlantic Airways (UK)
02 Dec - 17 Dec	KLM
24 Dec - 20 Jan	British Airways
28 Dec - 22 Jan	British Airways
11 Dec - 10 Jan	Iberia
11 Dec - 17 Jan	Iberia
11 Dec - 16 Jan	Iberia
24 Dec - 08 Jan	British Airways
06 Dec - 18 Dec	Iberia

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 363€

Return flights