How much longer do you think the US Airways Shuttle running in the NorthEast corridor will remain in operation? I'm asking that because it seems now likely that it will dissapear someday, I imagine. I'm saying that because US Airways has recently filed for Chapter XI bankruptcy court protection, meaning they definitely need a restructuring plan, and American Airlines will soon have hourly service between New York, Boston ans Washington DC. I regulary get AAirMail, that's how I know. Those flights will be operated by American Eagle with Embraer aircraft. American Airlines is becoming very strong in La Guardia so they are likely to take over US Airways Shuttle. If US Airways Shuttle dissapears, the Airbus A319's and A320's will be handed over to US Airways mainline.
Remember, Pan Am and Eastern, which were at one time major carriers flying out of New York City, both had a Shuttle service in the NorthEast corridor. That of Eastern was taken over by Donald Trump shortly before being taken over by US Airways, and that of Pan Am was taken over by Delta. All of that happened ten years ago.