I am trying to go to Hong Kong Airport from Shenzhen -Luohu

One way is to take the cross-border coach directly from Hk airport to Luohu, Shenzhen. Another way is to take the airport shuttle bus A43 to Sheung Shui first and then take the MTR East Rail Line to Lo Wu. Passing through Luohu border, you will get into Luohu Shenzhen.

Nooooooo! I am now a Ltuohu, Shenzhen and is trying to go to Hong Kong Airport from here. Plse advise.

Oh, I made a mistake. I am so sorry. It is just the opposite. From Luohu, you can take the cross-border coach directly to the airport. You can board the coach at SunShine Hotel, Luo Hu Hotel, or Crowne Plaza Hotel & Suites Landmark Shenzhen at Luohu. Or you can go to pass through Luohu Border and get into HK. Then take MTR East Rail Line to Sheung Shui and take bus A43 there to HK airport.