Because there is an airport express at the civil aviation ticket office next to Guangzhou Railway Station, the first bus is at 5 o'clock and the driving time is 45 minutes, which means that as long as you get on it, you can definitely get to the airport before 6 o'clock to check in.
Boarding point: It is located next to Caonuan Park, in the civil aviation ticketing building on the east side of Guangzhou Railway Station.
I suggest you check in:
7 Days Inn Chain (Guangzhou Railway Station Branch)
Address: No.270 Huanshi Middle Road, Yuexiu District.
PS, please leave for at least 30 minutes to go to the civil aviation ticket office here, that is, check out at 4: 30.