Cheapest return flights from Atlanta to Keflavik in May from $408

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 May 2025 (see full year).

Return flights

07 May - 20 May Spirit Airlines
06 May - 19 May Spirit Airlines
06 May - 13 May Frontier Airlines
07 May - 19 May Spirit Airlines
03 May - 15 May Frontier Airlines
07 May - 14 May Spirit Airlines
07 May - 15 May Spirit Airlines
08 May - 20 May Spirit Airlines
01 May - 09 May Spirit Airlines
02 May - 13 May Frontier Airlines

Also check the deals for one-way flights from Atlanta 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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