Frontier Airlines operates out of Concourse T at Hartsfield-Jackson Atlanta International Airport (ATL). Concourse T is part of the domestic terminal and is equipped with check-in counters for Frontier Airlines Atlanta Terminal where you can handle ticketing and luggage drop-off. After check-in, you'll pass through security to reach your departure gate. Concourse T offers a range of amenities including dining options, retail stores, and essential services like ATMs and restrooms. It is well-connected with transportation options such as taxis, ride-shares, and public transit for convenient travel to and from the airport.