US Airways announced Thursday that it cut fares by nearly 20 destinations that are serviced by its eastern hubs of Charlotte (NC), Philadelphia and Pittsburgh. The airline's executive vice president-sales and marketing said the move was part of the process of integrating with America West, "combining consumer-friendly pricing with the reach and amenities of a coast-to-coast and international network." Lowered fares include a Charlotte-Philadelphia route, now at $278, down 44 percent; and a Pittsburgh-Syracuse (NY) service, down 61 percent to $198.