it states on the Virgin ticket to be

Posted by max _payne on Thursday, 25. April 2013 at 07:51 Bali Time:

In Reply to: 1.5 hours enough for transit? Perth posted by daisydog on Thursday, 25. April 2013 at 06:56 Bali Time:

there at least 3 hrs before check in, so i presume that all of the other carriers are the same. 1.5 hrs is not enough.