I have never flown Jetstar before and I'm not familiar with Australian airlines and their fares. I'm looking into booking a round trip from SYD-OOL (Gold Coast). How far in advanced should I book this ticket? What is usually the cheapest fare it goes down to? And, what are usually the cheap days for travel? Is it like the U.S. - Saturday, Tuesday and Wednesday, etc.?

Any other tips are greatly appreciated. Thank you.