Cheapest return flights from Newark to Keflavik in May from $341

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 May 2025 (see full year).

Return flights

12 May - 20 May Icelandair direct
06 May - 13 May Icelandair direct
21 May - 28 May Icelandair direct
08 May - 13 May Spirit Airlines
22 May - 29 May Icelandair direct
22 May - 27 May Icelandair direct
24 May - 31 May Icelandair direct
02 May - 12 May Icelandair direct
22 May - 26 May Icelandair direct
15 May - 22 May Icelandair direct
26 May - 02 Jun Icelandair direct
31 May - 07 Jun Icelandair direct
31 May - 08 Jun Icelandair direct
29 May - 07 Jun Icelandair direct
01 May - 01 Jun Icelandair direct

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

Skyscanner

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik