what terminal is Alaska Airlines at EWR . Terminal A of Newark Liberty International Airport (EWR) is home to Alaska Airlines' headquarters. This terminal has a range of services, including free Wi-Fi, shops, and dining options, to guarantee a comfortable flight. To ensure a seamless start to their holiday, travelers can utilize self-service kiosks and specialized check-in booths. AirTrain Newark's ties to NJ Transit and Amtrak services make Terminal A conveniently accessible.Terminal A of Newark Liberty International Airport (EWR) is home to Alaska Airlines' headquarters. This terminal has a range of services, including free Wi-Fi, shops, and dining options, to guarantee a comfortable flight. To ensure a seamless start to their holiday, travelers can utilize self-service kiosks and specialized check-in booths. AirTrain Newark's ties to NJ Transit and Amtrak services make Terminal A conveniently accessible.