Cheapest return flights from Raleigh-durham to Keflavik in March from $407

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

Return flights

23 Mar - 29 Mar Icelandair direct
02 Mar - 07 Mar Icelandair direct
20 Mar - 25 Mar Icelandair direct
18 Mar - 25 Mar Icelandair direct
23 Mar - 27 Mar Icelandair direct
02 Mar - 08 Mar Icelandair direct
05 Mar - 12 Mar Frontier Airlines
11 Mar - 16 Mar Icelandair direct
04 Mar - 11 Mar Icelandair direct
11 Mar - 18 Mar Icelandair direct
29 Mar - 02 Apr Frontier Airlines
30 Mar - 03 Apr Delta
30 Mar - 03 Apr Icelandair direct

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

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