- The main base of operations for United Airlines is Terminal C at Newark Liberty International Airport (EWR). With a wealth of amenities, this terminal serves as a hub for United and provides a contemporary, effective United Airlines EWR Terminal travel experience. In addition to self-service kiosks and efficient check-in facilities, it offers a large range of food and shopping alternatives, including upscale and regional favorites. Advanced security checks for expedited processing and United Polaris lounges for VIP patrons are also features of Terminal C. This terminal provides passengers with access to United's vast domestic and international flight network.