Spirit Airlines is based at Newark Liberty International Airport,Terminal A. Both domestic and some foreign flights are handled by this terminal. What Terminal is Spirit Airlines at EWR it is advised to arrive at least two hours before a domestic flight and three hours before an international trip to ensure a seamless travel experience. For your comfort, Terminal A provides a range of services like as shops, dining establishments, and charging stations. Spirit Airlines' check-in desks are conveniently positioned in the middle of the terminal, making it simple to spot them when you arrive. You will go through security after checking in, and then you will follow the signage throughout the terminal to find your departure gate. Spirit Airlines employees are on hand at the check-in booths in Terminal A if you have any inquiries or run into any problems.