In the US, some airlines offer the ability to do same-day standby as a frequent flier perk. Maybe something Qantas could look at as they "enhance" so many other aspects of the QFF program.
US airlines however have always been quite a bit more generous about same-day "flow forward" due to the large number of passengers on connecting itineraries, and the high chance of daily disruptions. If someone shows up to the airport early, it's almost always in their best interests to get them on their way, since this by definition opens up a seat on the later flight, which might be critical to getting some other person home after they've missed a connection. This is less of an issue where the network is mostly point-to-point flights like in Australian domestic flying, and we also have much better weather on average.
There's really no excuse for Qantas not allowing free "flow forward" on domestic legs of international itineraries however. It's not like this is taking away revenue from a flexible ticket, like it might be on a one-hop golden triangle flight. The international flight will still be leaving at the same time, and getting the passenger to the hub earlier is clearly in everyone's best interests. Once that flight leaves with empty seats they have lost this "perishable" inventory forever.
US airlines however have always been quite a bit more generous about same-day "flow forward" due to the large number of passengers on connecting itineraries, and the high chance of daily disruptions. If someone shows up to the airport early, it's almost always in their best interests to get them on their way, since this by definition opens up a seat on the later flight, which might be critical to getting some other person home after they've missed a connection. This is less of an issue where the network is mostly point-to-point flights like in Australian domestic flying, and we also have much better weather on average.
There's really no excuse for Qantas not allowing free "flow forward" on domestic legs of international itineraries however. It's not like this is taking away revenue from a flexible ticket, like it might be on a one-hop golden triangle flight. The international flight will still be leaving at the same time, and getting the passenger to the hub earlier is clearly in everyone's best interests. Once that flight leaves with empty seats they have lost this "perishable" inventory forever.