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

Return flights

26 Sep - 07 Oct	Spirit Airlines
11 Sep - 16 Sep	Frontier Airlines
08 Sep - 16 Sep	British Airways
02 Sep - 09 Sep	Frontier Airlines
07 Sep - 14 Sep	Frontier Airlines
06 Sep - 14 Sep	Frontier Airlines
03 Sep - 11 Sep	Frontier Airlines
03 Sep - 10 Sep	Frontier Airlines
02 Sep - 10 Sep	Frontier Airlines
04 Sep - 11 Sep	Frontier Airlines
07 Sep - 15 Sep	Frontier Airlines
28 Sep - 05 Oct	Condor

Also check the deals for one-way flights from Atlanta to Salzburg 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 Salzburg in September from 601€

Return flights