AirHint found the following cheapest one-way flights from Newark (EWR) to Keflavik (KEF) in March 2026 (see full year).
One-Way flights
| 24 Mar | Spirit Airlines | ||
| 17 Mar | TAP | ||
| 15 Mar | TAP | ||
| 18 Mar | TAP | ||
| 31 Mar | SWISS | ||
| 24 Mar | Icelandair | direct | |
| 13 Mar | TAP | ||
| 19 Mar | Icelandair | direct | |
| 18 Mar | Icelandair | direct | |
| 11 Mar | Lufthansa |
Also check the deals for return flights from Newark to Keflavik in March.
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