Cheapest return flights from Newark to Keflavik in March from $412

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

Return flights

12 Mar - 17 Mar SWISS
02 Mar - 10 Mar SWISS
05 Mar - 28 Mar Austrian Airlines
15 Mar - 25 Mar Icelandair direct
02 Mar - 10 Mar Icelandair direct
01 Mar - 08 Mar Icelandair direct
02 Mar - 08 Mar Icelandair direct
03 Mar - 08 Mar Icelandair direct
12 Mar - 17 Mar Icelandair direct
24 Mar - 03 Apr Icelandair direct
04 Mar - 08 Mar Icelandair direct
26 Mar - 02 Apr Icelandair direct
28 Mar - 09 Apr Icelandair direct
29 Mar - 04 Apr Icelandair direct

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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