Buses run every 30 minutes between the city and JFK International Airport; the trip takes at least an hour. You can also take a subway to the Howard Beach-JFK station then transfer to a bus for a a journey of about 75 minutes. Buses run every 30 minutes between the city and La Guardia; a water shuttle also runs along the East River; or you can catch the subway to Roosevelt Ave-Jackson Heights and transfer to a bus but it will take you well over an hour. To get from Newark Airport you can get a private or public bus from the city. Taxis from all three airports into the city are expensive.