Cheapest return flights from Newark to Keflavik in May from $389

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

28 May - 03 Jun KLM
27 May - 03 Jun KLM
29 May - 04 Jun Air France
27 May - 17 Jun Air France
28 May - 05 Jun KLM
25 May - 02 Jun Air France
26 May - 03 Jun Delta
28 May - 04 Jun KLM
29 May - 05 Jun Delta
29 May - 02 Jun Delta
25 May - 31 May Icelandair direct
26 May - 27 May Icelandair direct
27 May - 31 May Icelandair direct
25 May - 26 May 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