AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Keflavik (KEF) in March 2026 (see full year).

Return flights

11 Mar - 18 Mar	Finnair
14 Mar - 21 Mar	Icelandair	direct
11 Mar - 18 Mar	Icelandair	direct
28 Mar - 07 Apr	Lufthansa

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to Keflavik in March from $647

Return flights