Starting in September, Amtrak will launch an express high-speed train between New York Penn Station and Washington Union Station. NEW YORK (WABC) -- New Yorkers are about to have a quicker trip to the nation's capital. The service is called Acela Nonstop. The ride will take approximately two hours and 35 minutes, Amtrak said. Initially, Acela Nonstop service will only be available on weekdays.