I notice there are some extra flights that have been introduced in January 2011, Perth - Denpasar. These flights are at discount prices eg. $110 or $141 etc, depending on day.
For some time, there were just 3 flights daily, now there are 4.
Admittedly the flight times are challenging eg. 1am Perth departure & 7am Denpasar departure, but may be useful to some.