Cheapest return flights from Atlanta (ATL) to Keflavik (KEF), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
29 Sep 06 Oct Frontier Airlines
28 Sep 05 Oct Frontier Airlines
25 Sep 02 Oct Frontier Airlines
02 Sep 09 Sep Frontier Airlines
30 Sep 07 Oct Frontier Airlines
01 Sep 08 Sep Frontier Airlines
08 Sep 15 Sep Frontier Airlines
04 Sep 11 Sep Frontier Airlines
10 Sep 17 Sep Frontier Airlines
07 Sep 14 Sep Frontier Airlines
23 Sep 30 Sep Frontier Airlines
14 Sep 21 Sep Frontier Airlines
15 Sep 23 Sep Frontier Airlines
19 Sep 26 Sep Frontier Airlines
25 Sep 09 Oct Frontier Airlines
26 Sep 03 Oct Frontier Airlines
28 Sep 08 Oct Frontier Airlines
Powered by

deals for one-way flights from Atlanta to Keflavik in September.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik International Airport

Updated Jul 5, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.