In Reply to: jetstar upgrade posted by grizzly on Monday, 26. May 2008 at 11:29 Bali Time:
It will all depend on the type of ticket you originally purchsed, so it could be from $350.00 to $750.00 1 way if you purchased the real cheapies.
Why don't you ring up and book before you leave,as you won't get it any cheaper at the airport.