Frontier Airlines is based at Philadelphia International Airport (PHL)'s Terminal E. Terminal E, located on the airport's eastern side, provides Frontier travellers with a simple and efficient travel experience. To meet the demands of travellers, the terminal includes modern facilities and services such as a big check-in area, security checkpoints, and a range of food and retail options. Frontier Airlines' Terminal E at PHL, with its clear signage and well-organized layout, offers a smooth and comfortable journey for travellers flying with the airline. https://airportsterminal.com/frontier-airlines/frontier-airlines-phl-terminal-philadelphia-international-airport/