This hasn't turned out as pretty as I was hoping, but thought I'd share some results here in case this was of interest...
I've been tracking QF Domestic sales for the last 12 months, noting when the sale was announced, when the sale offer period expired and the sale travel period. The results may be interesting for people to get an idea when a sale may be announced for a particular travel period.
It was hard to get a good scale, so sorry that the picture may be hard to read. The Period covers April 2013 through until November/December 2014. Each sale is represented by three lines:
1. the date the sale was announced
2. when the sale expires
3. the travel period
I've also capture the sale values for BNE-SYD (and BNE-CNS, as these are destinations I'm most interested in for my QF domestic travel), but can't represent the values on the chart yet... it'd be good to be able to colour-code the bars depending on how deep the discount was during the sale period.
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