Hi, can anybody tell me the opening hours of the Terminal of Changsha airport?

Well, as I know, the airport will be closed after the final flight arrival. Thus you are advised to find a hotel nearby the airport. And then catch the flight in the early morning. :)

Thanks, and sorry for late reaction. I do not know what time the terminal is locked. But if you are in, you can stay over night without any problem and actually it is rather comfortable - not as packed as Shannon (near London) and not as loud as I remember from Amsterdam (with its permanent announcements)- Sure, so far once off experience and here and there things may (have) changed.