Cheapest return flights from Newark to Keflavik in March from $338

Best time to book flights for Newark (EWR) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Newark (EWR) to Keflavik (KEF) in March 2025 (see full year).

Return flights

04 Mar - 11 Mar Spirit Airlines
18 Mar - 26 Mar Spirit Airlines
03 Mar - 11 Mar Spirit Airlines
10 Mar - 19 Mar Spirit Airlines
29 Mar - 02 Apr Spirit Airlines
31 Mar - 07 Apr Icelandair direct
29 Mar - 02 Apr Icelandair direct
16 Mar - 19 Mar Spirit Airlines
12 Mar - 19 Mar Spirit Airlines
09 Mar - 12 Mar Spirit Airlines
30 Mar - 03 Apr Icelandair direct
20 Mar - 26 Mar Austrian Airlines
31 Mar - 08 Apr Icelandair direct
09 Mar - 13 Mar Spirit Airlines
17 Mar - 19 Mar Spirit Airlines
30 Mar - 08 Apr Icelandair direct
27 Mar - 01 Apr Icelandair direct
24 Mar - 01 Apr Icelandair direct
26 Mar - 02 Apr Icelandair direct
31 Mar - 05 Apr Spirit Airlines

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

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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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