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

Return flights

15 Oct - 07 Nov	Icelandair
08 Oct - 01 Nov	Icelandair
15 Oct - 01 Nov	Icelandair
15 Oct - 03 Nov	Icelandair
13 Oct - 23 Nov	Norse Atlantic Airways (UK)
25 Oct - 04 Nov	LOT
26 Oct - 04 Nov	LOT
27 Oct - 05 Nov	LOT
26 Oct - 11 Nov	Norse Atlantic Airways (UK)
24 Oct - 02 Nov	LOT
11 Oct - 21 Oct	Norse Atlantic Airways (UK)
15 Oct - 21 Oct	LOT
09 Oct - 14 Oct	LOT
14 Oct - 28 Oct	SWISS
20 Oct - 27 Oct	SWISS
05 Oct - 09 Oct	Norse Atlantic Airways (UK)
25 Oct - 31 Oct	LOT
01 Oct - 06 Oct	Scandinavian Airlines
02 Oct - 07 Oct	Icelandair
24 Oct - 26 Oct	LOT

Also check the deals for one-way flights from New York to Istanbul in October.

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 October from 366€

Return flights