How long will it take me to travel to Guangzhou from Tianjin and how much will it cost me?

There is no bullet train from Tainjin to Guangzhou. You need to connect in Beijing. From Tianjin to Beijing takes about 30 min, from Beijing to Guangzhou about 8 hours. You also need leave at least 60 min for the transfer from Beijing South station to Beijing West station. Cost you CNY55 + CNY862 for second class seat.