A free Airport Express shuttle bus service transports travellers from stations to their respective hotels as well . Flight passengers can even have in-town check-in at the station , which offers a more convenient and time-saving routine . The Airport Express also offers flight check-in facilities at Kowloon Station and Hong Kong Station â `` the in-town check-ins offers a more convenient and time-saving routine ; a free shuttle bus service transports travellers from these stations to their respective hotels as well .