Cheapest return flights from Atlanta to Keflavik in April from $568

AirHint found the following cheapest return flights from Atlanta (ATL) to Keflavik (KEF) in April 2026 (see full year).

Return flights

13 Apr - 20 Apr Spirit Airlines
22 Apr - 29 Apr jetBlue
02 Apr - 09 Apr Frontier Airlines
07 Apr - 14 Apr Frontier Airlines
04 Apr - 11 Apr Frontier Airlines
04 Apr - 10 Apr Frontier Airlines
18 Apr - 25 Apr Spirit Airlines

Also check the deals for one-way flights from Atlanta to Keflavik in April.

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