AirAsia Flash Sale
Travel Period - 14 May - 31 August
Sale Period 11 May - 13 May
Perth to KL $99
KL to Perth $49.72
Plenty of sale fares available
eg
http://tinypic.com/r/2v1p2is/9
Aircraft - Airbus A330-300
Fares are quoted per passenger in AUD and include taxes. For bookings made and originating in Australia in AUD, a separate Processing Fee of up to AU$ 10 will be charged per flight per person for payments made with credit and debit cards. Processing Fees may also apply for other bookings. The fee will be displayed on the final payment page. The fee does not apply to one way or return bookings departing from Australia where payment is made using PayPal.
Man, this reminds me of my favorite Ozbargain deal ever - the business class flights to KL on Air Asia for less than discount economy.
That rocked.
Still, this is pretty good and KL is a surprisingly good family holiday destination.