Cheapest return flights from Atlanta to Keflavik in May from $328

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

09 May - 13 May Spirit Airlines
13 May - 01 Jun Spirit Airlines
14 May - 01 Jun Spirit Airlines
13 May - 20 May Spirit Airlines
08 May - 15 May Spirit Airlines
20 May - 27 May Frontier Airlines
16 May - 23 May Spirit Airlines
17 May - 24 May Spirit Airlines
14 May - 21 May Spirit Airlines
14 May - 25 May Frontier Airlines
18 May - 25 May Spirit Airlines
14 May - 10 Jun Spirit Airlines
14 May - 23 May Spirit Airlines
27 May - 03 Jun Frontier Airlines
26 May - 02 Jun 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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