Cheapest return flights from New York to Keflavik in March from $476

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

Return flights

09 Mar - 16 Mar American Airlines
10 Mar - 15 Mar American Airlines
31 Mar - 08 Apr Finnair
31 Mar - 08 Apr Icelandair direct
25 Mar - 30 Mar Finnair
24 Mar - 31 Mar Finnair
25 Mar - 29 Mar Finnair
31 Mar - 07 Apr Delta direct
19 Mar - 23 Mar Finnair
19 Mar - 25 Mar Finnair
15 Mar - 23 Mar Finnair
17 Mar - 25 Mar Finnair
16 Mar - 24 Mar Finnair
31 Mar - 03 Apr Finnair
26 Mar - 05 Apr Finnair
31 Mar - 03 Apr Air France direct
28 Mar - 09 Apr Finnair
26 Mar - 03 Apr jetBlue
27 Mar - 04 Apr jetBlue
29 Mar - 03 Apr Icelandair

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

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