From Beijing to Guangzhou, you can take flight or train. The price for air is 1700 Yuan and it may cost you 2 hours. If you want to go there by air, you can order ticket from a travel agent and it will save you a lot of money as you will get the biggest discount. Train is relatively cheaper. the cost for hard berth is 450 yuan and soft berth is 675 yuan. It may cost you about 21 hours. Have a good time!

Hi, i forget that the train to guangzhou usually departs from Beijing West Station. Godd luck!