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PIT was the hub for US Air (originally Allegheny Airlines) back when that airport was built. It's pretty vacant now that USAir changed its name, moved the hub t
by azeotropic 9y ago
PIT was the hub for US Air (originally Allegheny Airlines) back when that airport was built. It's pretty vacant now that USAir changed its name, moved the hub to PHI and merged with American, but PIT used to be quite busy.