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

Return flights

15 Mar - 22 Mar	Scandinavian Airlines
12 Mar - 19 Mar	Scandinavian Airlines
10 Mar - 18 Mar	Scandinavian Airlines
11 Mar - 19 Mar	Lufthansa
14 Mar - 21 Mar	British Airways
12 Mar - 20 Mar	British Airways
11 Mar - 18 Mar	British Airways
13 Mar - 20 Mar	British Airways
10 Mar - 18 Mar	Icelandair	direct
21 Mar - 27 Mar	Icelandair	direct
29 Mar - 12 Apr	Icelandair	direct
26 Mar - 04 Apr	Icelandair	direct

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

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

Cheapest return flights from Newark to Keflavik in March from 340€

Return flights