Cheapest one-way flights from Newark to Keflavik in June from $303

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

AirHint found the following cheapest one-way flights from Newark (EWR) to Keflavik (KEF) in June 2025 (see full year).

One-Way flights

02 Jun Spirit Airlines
01 Jun Spirit Airlines
13 Jun Icelandair direct
14 Jun Icelandair direct
02 Jun Icelandair direct
26 Jun Icelandair direct
30 Jun Icelandair direct
25 Jun Icelandair direct
06 Jun Icelandair direct
01 Jun Icelandair direct

Also check the deals for return flights from Newark to Keflavik in June.

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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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