With economy seats have read that QF restrict seat selection after 85% allocated.
At T-80 try again. If a B737 trans Tasman row 4 may be open for you. (better legroom)
QF link-->
https://www.qantas.com/au/en/travel-...selection.html
Economy seating options
You can select your seat on Qantas operated flights when making your booking, or any time before you fly. The earlier you do so, the more choice you have.
A charge may apply, depending on the seat type selected. Discover your Economy seating options with Qantas.
Complimentary seat selection
As a Qantas Frequent Flyer, enjoy complimentary standard seat selection when you book on any Qantas operated domestic or international flight departing Australia.
* If your flight isn't originating in Australia and you're a Platinum One, Platinum, Gold or Silver member, you'll also receive complimentary standard seat selection.Check you meet the
requirements and additional conditions for complimentary seat selection.
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