Phoenix Sky Harbor International Airport's (PHX) Terminal 4 is home to the
Turkish Airlines PHX Terminal. Flights are offered both domestically and internationally, with the most popular route going to Istanbul, the airline's primary hub. In addition to check-in desks and customer service, the airline offers Business Class passengers access to first-class lounges. Turkish Airlines' location in Terminal 4 guarantees convenient access to other airline gates as well as the terminal's facilities, including restaurants, shops, and passenger services. The Sky Train provides fast transportation between the terminals of the airport. To guarantee seamless check-in and security processes, Turkish Airlines passengers are encouraged to arrive at least three hours before their overseas flight.