What Terminal is Spirit Airlines at EWR? Spirit Airlines operates from Terminal B at Newark Liberty International Airport (EWR). Known for its efficient layout, Terminal B facilitates a smooth travel experience for Spirit Airlines passengers. Travelers can enjoy quick access to check-in counters, security checkpoints, and boarding gates. Additionally, the terminal offers various amenities such as dining options, retail stores, and comfortable seating areas. It is advisable to arrive at least two hours before your flight to ensure a hassle-free journey with Spirit Airlines at EWR.