Phoenix based USAirways and major player Southwest operate from the largest and newest terminal at Phoenix, Terminal 4. It originally opened in 1990 and expanded in 1994 and 2002. T4 has 88 gates and is also home to international carriers Air Canada, AeroMexico, British Airways, and LCC Frontier. T4, also known as the Barry Goldwater Terminal is far and away the largest terminal here.
Images courtesy: David Zaccaria