How to get from Xian North Railway Station to Xianyang International Airport ?

Hi,

We will be arriving from Huashan by Train: G819/14Apr17 at 1906hrs.
We will be catching our flight at 2335hrs.

1) How to we get from the North Railway Station to Xianyang International Airport ?
2) Is there a train or bus service from the North Railway Station to Xianyang International Airport ?
3) How much is the bus fare & how long is the journey to airport ?
4) When will the Tourism Bus No: 1, 2 & 3 resume operations ?

Thank you.