Jetstar is having an incredible 'RETURN FOR FREE SALE' on many domestic and international routes. For example the airline is offering cheap flights from Australia to many Asian destinations. Fly to Bali, Japan, Thailand, or Vietnam from just AU$139 round trip! Various travel periods apply!
(UPDATE) Air Asia and Jetstar are having sale from Melbourne, Sydney, Darwin and Perth to Bangkok! Book your ticket from just AU$213 return! There is a long stopover in Kuala Lumpur on some of the dates, a nice opportunity to stroll around the Malaysian capital a bit.
Explore vibrant Thailand! Jetstar is offering flights from Perth to Thailand or Philippines from only AU$190 for a round trip!