Qantas Boxing Day sale on for 3 days! Pretty much every route on sale.
The good news is it includes you too, Sydney, as in theory, covid clusters should be under control by April.
All ones I've checked seem to be from 22 April to 23 June 2021.
To find the cheapest flights, first visit the Qantas deal page to see dates and prices.
Once you've found the ones you want, search on [Beat That Flight] - eg Per to Mel/Syd/Bne is $209 on Qantas, but we can see it from $193 on other sites in our searches.
Interestingly Virgin is cheaper on a lot of these routes and dates, and obviously Jetstar - they have a sale on too, so they'll show up too in the searches.
Unfortunately I don't have time today to produce a big list of all the cheapest dates, but here are some examples:
Syd to MEL $95 : https://bookings.beatthatflight.com.au/flights/syd2204mel1
Syd to Bris $104 : https://bookings.beatthatflight.com.au/flights/syd2204bne1
Mel to Adl $112 : https://bookings.beatthatflight.com.au/flights/mel2204adl1
Per to Mel/Syd/Bne $193: eg https://bookings.beatthatflight.com.au/flights/per2204mel1
Qantas includes checked luggage, food, wifi and movies where available on your plane.
To be notified about more deals like this, visit Beat That Flight or follow Beat That Flight on Facebook.
Would have to be nuts to book that far ahead, even if they give you free cancellation