Cheapest return flights from Atlanta to Keflavik in October from $352

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

Return flights

06 Oct - 16 Oct Spirit Airlines
08 Oct - 16 Oct Spirit Airlines
02 Oct - 08 Oct Spirit Airlines
03 Oct - 06 Oct Spirit Airlines
03 Oct - 08 Oct Spirit Airlines
04 Oct - 07 Oct Spirit Airlines
05 Oct - 08 Oct Spirit Airlines
06 Oct - 20 Oct Spirit Airlines
07 Oct - 21 Oct Spirit Airlines
15 Oct - 20 Oct Spirit Airlines

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

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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