Cheapest return flights from Newark to Istanbul in December from $420

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

Return flights

31 Dec - 16 Jan Icelandair
10 Dec - 23 Jan Icelandair
10 Dec - 16 Jan Icelandair
10 Dec - 19 Dec Icelandair
08 Dec - 16 Dec SWISS
31 Dec - 14 Jan LOT
31 Dec - 22 Jan LOT
10 Dec - 25 Dec Air Canada
31 Dec - 12 Jan LOT
31 Dec - 10 Jan Aer Lingus
07 Dec - 14 Dec TAP
30 Dec - 14 Jan LOT
30 Dec - 25 Jan LOT
30 Dec - 31 Jan LOT
07 Dec - 15 Dec SWISS
09 Dec - 16 Dec SWISS
07 Dec - 18 Dec Air Canada
08 Dec - 13 Dec Delta
08 Dec - 15 Dec Delta
09 Dec - 12 Dec Lufthansa

Also check the deals for one-way flights from Newark to Istanbul in December.

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