**Frontier Airlines Atlanta Terminal** For your convenience, Frontier Airlines provides a variety of check-in methods. To select your seat, pay for your luggage, and print your boarding card, you can check in online up to 24 hours before to your departure. Terminal N has both manned counters and self-service kiosks for those who would rather check in at the airport. For enough time to allow for check-in and security, arrive at least two hours prior to departure. After registering, proceed to the security check. To help speed up the procedure, Terminal N has multiple security lanes. For a quicker screening process, utilize the designated lane if you are enrolled in TSA PreCheck. Make sure you have your ID and boarding pass ready to show the security staff.Visit: [Frontier Airlines Atlanta Terminal](https://airlineairportsterminal.com/frontier-airlines/frontier-airlines-atl-terminal-hartsfield-jackson-atlanta-international-airport/)