Hi Iris, I would say the following: I'm leaving Beijing at 9am to go to Paris, or I'm departing Beijing at 9am for Paris. You could also use the noun form " departure" and say: my departure for Paris from Beijing will be at 9am. I hope that helps!

I'll be leaving to Paris from Beijing at 9:00 am/pm. My flight departure from Beijing to Paris will be at 9:00 am/pm.

i am leaving beijing to paris at 9 :00. i am in beijing and will go to paris .The fight depart at 9:00 Dont know is right or not .