Cheapest return flights from New York to Keflavik in December from 352€

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

Return flights

04 Dec - 08 Dec Spirit Airlines
06 Dec - 13 Dec Spirit Airlines
11 Dec - 18 Dec Spirit Airlines
03 Dec - 10 Dec Spirit Airlines
08 Dec - 15 Dec Spirit Airlines
05 Dec - 12 Dec Spirit Airlines
07 Dec - 14 Dec Spirit Airlines
04 Dec - 11 Dec Spirit Airlines
02 Dec - 09 Dec Spirit Airlines
01 Dec - 08 Dec Spirit Airlines
25 Dec - 01 Jan Air Canada
26 Dec - 01 Jan Porter Airlines (Canada) Ltd
28 Dec - 04 Jan Air Canada
26 Dec - 02 Jan Air Canada
28 Dec - 01 Jan Porter Airlines (Canada) Ltd
27 Dec - 03 Jan Porter Airlines (Canada) Ltd
30 Dec - 01 Jan Porter Airlines (Canada) Ltd
29 Dec - 01 Jan Porter Airlines (Canada) Ltd
29 Dec - 04 Jan Porter Airlines (Canada) Ltd
26 Dec - 04 Jan Porter Airlines (Canada) Ltd

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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