United Airlines PDX Terminal at Portland International Airport (PDX), United Airlines is based in Concourse E. Located within the South Terminal, this concourse is fully furnished with all the services that travelers need, such as restaurants, retail stores, and charging stations. After checking in at the airline's designated counters in the main terminal, travelers can head to Concourse E via security. The terminal offers speedy TSA screening and complimentary Wi-Fi for a comfortable journey. To guarantee a seamless trip, travelers are encouraged to arrive at least two hours before to departure.