There are usually

Posted by jerryatric on Thursday, 26. January 2012 at 09:51 Bali Time:

In Reply to: August Perth- Bali Flights $$$$$$$$$$$ posted by Jinglebells on Wednesday, 25. January 2012 at 08:10 Bali Time:

promotional fares at the Travel Expo in Perth each February, maybe
keep an eye on the Sunday Times for details