AirHint found the following cheapest return flights from New York (JFK) to Keflavik (KEF) in November 2025 (see full year).

Return flights

28 Nov - 06 Dec	SWISS
28 Nov - 05 Dec	SWISS
28 Nov - 02 Dec	Lufthansa
13 Nov - 06 Dec	SWISS
27 Nov - 04 Dec	jetBlue
10 Nov - 15 Nov	Lufthansa
17 Nov - 25 Nov	Lufthansa
29 Nov - 06 Dec	LOT
10 Nov - 16 Nov	Lufthansa
25 Nov - 02 Dec	Austrian Airlines
30 Nov - 07 Dec	Icelandair	direct
16 Nov - 20 Nov	jetBlue
17 Nov - 13 Dec	Lufthansa
28 Nov - 05 Dec	Icelandair	direct
23 Nov - 27 Nov	Icelandair	direct
12 Nov - 18 Nov	Lufthansa
17 Nov - 22 Nov	Lufthansa
19 Nov - 22 Nov	Lufthansa
18 Nov - 23 Nov	jetBlue
19 Nov - 23 Nov	Lufthansa

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

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 November from 340€

Return flights