Cheapest return flights from New York to Keflavik in December from $501

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

Return flights

08 Dec - 14 Dec Spirit Airlines
10 Dec - 16 Dec Spirit Airlines
08 Dec - 13 Dec Spirit Airlines
02 Dec - 09 Dec Spirit Airlines
05 Dec - 10 Dec Air Canada
04 Dec - 10 Dec American Airlines
18 Dec - 23 Dec Spirit Airlines
17 Dec - 04 Jan Spirit Airlines
01 Dec - 08 Dec Scandinavian Airlines
16 Dec - 28 Dec Porter Airlines (Canada) Ltd
23 Dec - 28 Dec Porter Airlines (Canada) Ltd
24 Dec - 17 Jan Porter Airlines (Canada) Ltd
25 Dec - 01 Jan Porter Airlines (Canada) Ltd
25 Dec - 04 Jan Spirit Airlines
29 Dec - 03 Jan Spirit Airlines
28 Dec - 03 Jan Spirit Airlines
27 Dec - 04 Jan Porter Airlines (Canada) Ltd
26 Dec - 02 Jan Air Canada
29 Dec - 02 Jan Air Canada
25 Dec - 02 Jan Air Canada

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

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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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