A new design rightsizes Pittsburgh International Airport and creates a rare amount of open space. Pittsburgh International Airport (PIT) was never really meant to serve Pittsburgh. When the modern airport opened in 1992, it was built as a hub for U.S. Airways, primarily serving as a connection point for passengers heading elsewhere. Tens of millions of passengers used PIT annually, though only a small number of them were actually flying into or out of Greater Pittsburgh. Most stayed in the terminal, leaving one gate only to enter another, which was fine—until it wasn’t.