Cheapest return flights from Raleigh-durham to Keflavik in May from $525

Best time to book flights for Raleigh-durham (RDU) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Keflavik (KEF) in May 2025 (see full year).

Return flights

12 May - 19 May Air France
12 May - 29 May Delta
05 May - 09 May Frontier Airlines
28 May - 01 Jun KLM
05 May - 09 May Icelandair direct
02 May - 05 May Icelandair direct
01 May - 04 May Frontier Airlines
09 May - 18 May Frontier Airlines
22 May - 27 May Frontier Airlines
12 May - 29 May Icelandair direct
20 May - 26 May Frontier Airlines

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

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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.

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