Cheapest return flights from Atlanta to Keflavik in April from $418

Best time to book flights for Atlanta (ATL) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Atlanta (ATL) to Keflavik (KEF) in April 2025 (see full year).

Return flights

22 Apr - 29 Apr Frontier Airlines
25 Apr - 03 May Frontier Airlines
30 Apr - 07 May Spirit Airlines
01 Apr - 08 Apr Frontier Airlines
08 Apr - 15 Apr Frontier Airlines
27 Apr - 05 May Frontier Airlines
26 Apr - 04 May Frontier Airlines
28 Apr - 06 May Frontier Airlines
14 Apr - 22 Apr jetBlue
19 Apr - 27 Apr Frontier Airlines
24 Apr - 27 Apr Frontier Airlines
11 Apr - 18 Apr Frontier Airlines
20 Apr - 28 Apr Frontier Airlines
20 Apr - 27 Apr Frontier Airlines
15 Apr - 23 Apr Frontier Airlines

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

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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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