Spirit EWR Terminal is operated from Terminal B in Newark Liberty International Airport (EWR) and provides customers with its budget-friendly flights. Passengers are able to check in for their flights online, at the self-service kiosks, or ticket counters on Level 2. Spirit's policy on carry-on bags allows for a free personal item but charges for carry-on bags as well as checked bags, which can be prepaid at booking or checked in. Terminal contains many dining establishments ranging from quick-service restaurants to convenience stores. Free Wi-Fi and charging tables are available throughout Terminal B. Accessibility features like wheelchair aid and pet relief areas make all travelers comfortable. Ground transport facilities include the AirTrain Newark monorail, taxis, ride-sharing, car hire, and parking spaces. Spirit Airlines Terminal B in Newark Airport provides convenient low-cost travel with functional amenities intended for budget travelers.

Spirit Airlines flies out of Newark Liberty International Airport's (EWR) Terminal B, which is one of the region's busiest airports serving the New York metropolitan region. Terminal B is a sophisticated and highly appointed terminal that has been built to efficiently accommodate a great many passengers, and Spirit Airlines takes advantage of this facility to provide affordable travel solutions while still providing critical passenger amenities. The in-terminal experience for Spirit travelers strikes a balance of affordability and convenience, emphasizing efficient processes and functional amenities.

Terminal B is located in the center of the Newark Liberty complex and is the main terminal for Spirit Airlines, among others. It consists of several concourses that are linked by an underground pedestrian walkway and can be accessed by public transport, taxis, private cars, and airport shuttles. Spirit Airlines has special check-in desks and gates in Terminal B, which allows passengers to easily locate and get to their flights.

The terminal itself offers a range of services, such as retail stores, restaurants, lounges, and passenger service centers, all meant to make the waiting experience pleasant. Although Spirit Airlines concentrates on low fares, travelers still enjoy the terminal's full facilities.

Booking a Spirit Airlines flight from Newark's Terminal B can be done online as well as face-to-face. The airline prefers its passengers to book tickets either on its official website or mobile app, where customers can get the best available prices, manage their reservations, and access special deals. For travelers who like face-to-face communication, Spirit has manned ticket counters in Terminal B's check-in hall.

New reservations, modifications to pre-existing bookings, upgrades, and special service requests are handled by Spirit's customer service staff at the ticket counter. These ticket counters open some hours prior to the departure of the first flight and continue to serve until the departure of the last flight, providing some flexibility for those who might come to the terminal without having booked or reserved in advance.

Spirit Terminal Newark provides various means of checking in for flights from Terminal B. Online check-in begins 24 hours before departure and is strongly encouraged to reduce wait times at the airport. Travelers may check in on the Spirit Airlines website or mobile app, print boarding passes at home, or use smartphone-based digital boarding passes.