Discover Spirit Airlines EWR Terminal Newark Liberty International Airport's Terminal A is where Spirit Airlines is based (EWR). Travelers may enjoy a comfortable experience at this terminal because of its many amenities, which include restaurants and retail stores. Spirit is a well-liked option for travelers on a tight budget because of its reputation for offering inexpensive tickets. Check-in and boarding are simple at the terminal, and customers can get assistance from helpful staff. All things considered, Spirit Airlines' domestic and international flights use Terminal A as a handy hub.