There are three terminals at Phoenix Sky Harbor International Airport: Terminals 2, 3 and 4. Terminal 1 was removed in 1990 after Terminal 4 opened, and each terminal has its own parking lot. The airport is located approximately 3 miles from downtown Phoenix.
Terminal 4 is the largest terminal at Phoenix Sky Harbor International Airport. It serves several airlines, such as Air Canada, American and Southwest, plus most international flights. Terminal 3 serves Delta, Frontier, JetBlue and Hawaiian Airlines. Terminal 2 serves airlines such as United, Spirit and Sun Country.
The Phoenix Sky Train connects all three terminals and runs approximately every three to five minutes.