The PHL Frontier terminal features multiple gates dedicated to Frontier Airlines flights. The boarding process is generally straightforward, with clear signage and helpful airport staff to assist passengers. Because this terminal is less crowded than some of the larger terminals at Philadelphia International Airport, boarding tends to be a faster, less stressful experience. https://airportsterminalhub.com/airlines/frontier-airlines/frontier-airlines-philadelphia-international-airport-phl-terminal/