AirAsia x as flights from Perth to KL in october and november for $8 there and $57 return plus taxes which comes to a grand total of $180.00 each return!
They also do really cheap flights to Bali for less than $100 return from KL inc taxes.
I was toying with the idea tonight but decided to go back to Bali mid July with Virgin for $240 each way + taxes which is still cheap for school holiday period.