How to get from Causeway Bay to Airport using MTR?

In fact, the fastest way is to walk about 300m to take bus line A11 from Cannon street, Gloucester road to the airport. If you take metro, you need to transfer 2 times. First, walk about 200m to take HK Island Line from Causeway Bay to Central and transfer to Tung Chung Line, and then transfer to the airport expressway at the Tsing Yi Station. Finally, get off at the airport Station and get out of Exit T3.