Best to request as far out as possible, however the points depends on your carrier/s used and the trip distance:I'll be soon looking for J flight from USA to Australia in April next year after school holidays wrap, ideally BNE. If I can get a flight to MEL or SYD, did I read that a domestic flight can be requested at no extra points? Is it best to start requesting a release at the earliest possible date, as in 353 days out?
Classic Flight Reward Tables | Qantas Frequent Flyer
Find out how many Qantas Points you need for Classic Flight Rewards.
www.qantas.com
If using QF/AA, the first table applies in each mileage band. eg LAX-MEL is zone 8, but LAX-MEL-BNE is zone 9. LAX-SYD-BNE is zone 8.
Use gcmap.com to calculate distances.
If using another partner like Alaska, you have to use the 3rd table for the partner component of the trip, in addition to the QF component.