There is no one site or app with comprehensive real time data. Have to use each company's app. "KMB & LW" has real time arrival for most bus lines in Kowloon and New Territories. Notable exception are most cross-harbor routes. "CitybusNWFB" has real time for its Cityflyer airport buses. MTR's "Next Train" app has 4 of its lines, including Airport Express. HK Tramway "HKT" has one but I find its accuracy questionable.
Last edited by rkkwan; May 9, 2016 at 4:59 am