AirHint found the following cheapest return flights from Atlanta (ATL) to Naples (NAP) in September 2025 (see full year).

Return flights

15 Sep - 23 Sep	Scandinavian Airlines
29 Sep - 13 Oct	Frontier Airlines
28 Sep - 05 Oct	Frontier Airlines
06 Sep - 11 Sep	Frontier Airlines
12 Sep - 04 Oct	Frontier Airlines
30 Sep - 25 Oct	Frontier Airlines
17 Sep - 11 Oct	Spirit Airlines
22 Sep - 18 Oct	United
13 Sep - 04 Oct	Frontier Airlines
15 Sep - 11 Oct	Lufthansa
06 Sep - 20 Sep	Frontier Airlines
07 Sep - 27 Sep	Frontier Airlines
06 Sep - 20 Sep	Delta	direct
06 Sep - 11 Sep	Air France	direct

Also check the deals for one-way flights from Atlanta to Naples in September.

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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Cheapest return flights from Atlanta to Naples in September from 514€

Return flights