Tough economic conditions for airlines at the start of the 21st century , the September 11 attacks , and high operating costs at the airport put the US Airways hub in Pittsburgh at a serious disadvantage . By 2003 , US Airways reported to be running a $ 40 million loss per year ( $ present day dollars ) operating its hub at Pittsburgh , while also paying roughly 80 % of the new airport 's $ 673 million debt ( $ present day dollars ) stemming from its requested construction of the new terminals
September 11 attacks
September 11 attacks
Pittsburgh International Airport