AirHint found the following cheapest return flights from New York (NYC) to Keflavik (KEF) in January 2026 (see full year).

Return flights

26 Jan - 02 Feb	Icelandair	direct
27 Jan - 03 Feb	Icelandair	direct
28 Jan - 04 Feb	Icelandair	direct
25 Jan - 01 Feb	Icelandair	direct
29 Jan - 05 Feb	Icelandair	direct
30 Jan - 06 Feb	Icelandair	direct
31 Jan - 07 Feb	Icelandair	direct
25 Jan - 30 Jan	Icelandair	direct
19 Jan - 26 Jan	Icelandair	direct
20 Jan - 27 Jan	Icelandair	direct
17 Jan - 24 Jan	Lufthansa
06 Jan - 13 Jan	Finnair
07 Jan - 14 Jan	Finnair
08 Jan - 15 Jan	Finnair
11 Jan - 18 Jan	Finnair
12 Jan - 19 Jan	Finnair
13 Jan - 20 Jan	Finnair
26 Jan - 21 Feb	Finnair
12 Jan - 07 Feb	Finnair
13 Jan - 07 Feb	Finnair

Also check the deals for one-way flights from New York to Keflavik in January.

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 Keflavik in January from 336€

Return flights