Hello, I'll be in Xian on 31th December. Is there any shuttle bus from Bell Tower to Airport?

Well, first of all, you need to arrive at the airport at least 2 hours in advance before the departure. From your hotel, you can take a taxi to Xishaomen Airport Business Hotel first. Then take the direct shuttle bus to the airport. The service hours of this bus line are from 05:00 - 00:00 midnight. You should catch the first bus schedule. It takes around an hour on the way. And the ticket fare is CNY 25 per person. Hope helpful!