Cheapest return flights from Atlanta to Keflavik in August from $437

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

Return flights

20 Aug - 29 Aug Spirit Airlines
21 Aug - 29 Aug Spirit Airlines
26 Aug - 09 Sep Spirit Airlines
26 Aug - 02 Sep Spirit Airlines
27 Aug - 10 Sep Spirit Airlines
22 Aug - 27 Aug Spirit Airlines
13 Aug - 20 Aug Spirit Airlines
19 Aug - 02 Sep Spirit Airlines
26 Aug - 05 Sep Spirit Airlines
13 Aug - 21 Aug Spirit Airlines
22 Aug - 25 Aug Spirit Airlines
13 Aug - 18 Aug Spirit Airlines
19 Aug - 29 Aug Spirit Airlines
23 Aug - 02 Sep Spirit Airlines
19 Aug - 22 Aug Spirit Airlines
13 Aug - 27 Aug Spirit Airlines
23 Aug - 06 Sep Spirit Airlines
22 Aug - 05 Sep Spirit Airlines
27 Aug - 06 Sep Spirit Airlines
28 Aug - 05 Sep Spirit Airlines

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

Skyscanner

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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