When you arrive at the Guangzhou Baiyun Airport and you are going to Shenzhen Luohu , you can take a train from Guangzhou East Railway Station to Shenzhen Louhu, price is 79.5 Yuan; time is about 80 minutes. The other train is from Guangzhou South Railway Station to Shenzhen North Railway Station; it is a High Speed Train; price is 75 Yaun; duration is 35 minutes. Taking metro from Shenzhen North Railway Station to Lowu when you arrive at Shenzhen.
You can take Metro Line 3 at airport to the Guangzhou East Railway Station. It takes about 30 minutes, and costs 7 Yuan from Guangzhou East Railway to Shenzhen Lowu. （ How to Get to Guangzhou East Railway Station from Guangzhou Baiyun Airport ）
Another way to Guangzhou East Railway Station from Guangzhou Airport: once you're in the arrival hall simply look for the signage "Taxi". When you walk out the A5 Gate of the arrival hall, you should see a long queue of taxis outside. Take a taxi from Guangzhou Baiyun Airport to Guangzhou East Railway Station. Price will be about 100-120 Yuan. ( Reliable taxis at Guangzhou Airport )
If you want to travel to Guangzhou South Railway Station, get off at Jiahewanggang Station and transfer to Line 2. At the end of the terminal gets off at the Guangzhou South Railway Station. Travel time is about 60 minutes; ticket price is 9 Yuan. ( How to Get to Guangzhou South Railway Station from Guangzhou Baiyun Airport )
At Guangzhou East Railway Station the first train to Shenzhen runs at 06:15am, and the last train is at 23:00pm.
At Guangzhou South Railway Station, the first train to Shenzhen runs at 07:00 AM, and the last train is at 23:00pm.