What terminal is Delta Airlines at EWR? Delta Airlines operates from Terminal B at Newark Liberty International Airport (EWR). This terminal is well-equipped to provide travelers with a smooth and efficient airport experience. If you're wondering what terminal is Delta Airlines at EWR, Terminal B is where you'll find all Delta check-in counters, baggage services, and departure gates. ... https://airlineofficedetails.com/delta-airlines-newark-liberty-airport-terminal-ewr/