Hong Kong is the gateway to China and understandably there are many flights each day from Hong Kong to major China cities. But flying is not cheap. A sure way to save money is go to Hong Kong ‘s neighboring city Shenzhen and fly from there. As it now becomes the domestic flight, the flight ticket will cost a lot less.
The good news is, you can now check-in in Hong Kong for flights from Shenzhen Airport. The Shenzhen Airport authority has set up a flight waiting room in the shopping mall right above the Kowloon Station of Hong Kong Airport Express. After check-in, you can just take the direct bus to Shenzhen Airport from Kowloon Station via the newly opened Hong Kong-Shenzhen Wesetern Corridor port of entry (this entry is convenient as the passport control of Hong Kong and China sides is carried out under one roof – in the same building.
The aforementioned through-bus is a new service, the first of its kind, launched at the same time as the Kowloon Station check-in service. Buses depart almost every half an hour, running from 6:15am to 7:15pm at Hong Kong side, and from 9:30am to 9pm at Shenzhen side. The whole journey costs about HK$100 and takes about 75 minutes – that is the ideal bus journey time, excluding time for immigration etc. So always allow more time for catching a flight.
For details of the direct bus service, see this post.