Frontier Airlines operates out of Terminal South at Hartsfield-Jackson Atlanta International Airport (ATL). This terminal is mostly used by low-value companies and is convenient for passengers flying with Frontier Airlines from Atlanta. If you are traveling to or from ATL with Frontier Airlines, Terminal South is where you may discover their check-in counters, departure gates, and other applicable offerings.
https://airportsterminalguides.....com/frontier-airlin