Looking for what terminal is United Airlines at EWR? United Airlines primarily operates from Terminal C at Newark Liberty International Airport (EWR). Terminal C is United’s main hub at the airport, offering travelers streamlined check-in, comfortable lounges, dining options, and convenient gate access. If you're flying United from EWR, Terminal C is where your journey starts. https://airlineofficedetails.com/united-airlines-newark-liberty-airport-terminal-ewr/