Yes - two of them are US Airways and British Airways.
US Airways, United Airlines, Delta, and Air Canada.
United Airlines US Airways
Those that I know of: ElAl, US Airways and Delta.
Only US Airways flies direct nonstop. United advertise but they merely code share on a US Airways plane.
Delta, British Airways, US Airways, and United airlines all fly from Phoenix to various cities in Germany. Air France and Lufthansa also fly out of Phoenix to Germany.
US AIRWAYS operates this route.
i think 10 to 12
US Airways
Philadelphia Airport offers flights from 15 different airlines. Some of the airlines offering flights out of Philadelphia Airport are US Airways, Delta, AirTran Airways, Lufthansa, Frontier, Air Canada just to name a few.
US Airways & United Airlines
Delta Air Lines Allegiant Air LLC US Airways