Latest Jetstar Sale looks quite good, many flights travel period later this year (Which is nice as many cheap flights you have to travel by next month typically).
Its Jetstar so you have a stopover in either Melbourne or Sydney.
Bali looks like a good deal (has been advertised cheaper but I don't think with future travel periods)
Bali From $200 one way, Singapore from $207 one way, Phuket from $254 one way, other flights including domestic.