Originally Posted by
vintyma
I'm afraid I'm not flexible on dates as I've made various travel arrangements within Australia based on those dates. How did you find out the flight is pretty full? I'd like to find that out as well for future flights.
I guessed based on the mileage they wanted for the award. But since you asked, I checked expertflyer, and there are only 3 tickets for sale in PE on that day if I have my fare codes correct (W) and non in discounted PE (P). You can get a free trial to Expertflyer if you want to give it a try.
There are more seats available in J. You have time to become familiar with Seats.aero and you can set an alert for awards that day between LAX-SYD. Assuming you are wiling to cancel your revenue flight and get a voucher for it after you book your mileage award.