Spirit Airlines is based out of Philadelphia International Airport's Terminal E (PHL). Mostly utilized for domestic travel Spirit Airlines PHL Terminal provides travelers with quick access to facilities including dining options and shopping, as well as convenient check-in booths and security checkpoints. With routes across the United States and a few stops in the Caribbean and Latin America, Spirit Airlines mostly operates domestic flights. To help travelers, the terminal has amenities like baggage claim and customer service offices. The airport shuttle and public transit make it simple for travelers to get to Terminal .