Cheapest return flights from Atlanta to Keflavik in January from $465

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

Return flights

26 Jan - 30 Jan Frontier Airlines
28 Jan - 01 Feb Spirit Airlines
21 Jan - 28 Jan Frontier Airlines
23 Jan - 30 Jan Frontier Airlines
24 Jan - 31 Jan Frontier Airlines
26 Jan - 02 Feb Spirit Airlines
02 Jan - 09 Jan Frontier Airlines

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

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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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