Cheapest return flights from Newark to Keflavik in May from $418

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

Return flights

09 May - 17 May KLM
12 May - 25 May Delta
13 May - 27 May Virgin Atlantic
16 May - 23 May Delta
15 May - 20 May KLM
15 May - 21 May Delta
21 May - 26 May KLM
21 May - 25 May Delta
15 May - 24 May Virgin Atlantic
08 May - 12 May Delta
19 May - 01 Jun Icelandair direct
29 May - 03 Jun Icelandair direct
30 May - 06 Jun Icelandair direct
28 May - 06 Jun Icelandair direct
26 May - 02 Jun Icelandair direct
27 May - 03 Jun Icelandair direct
28 May - 04 Jun Icelandair direct
29 May - 05 Jun Icelandair direct

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

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