I'm flying LHR-SYD (BA) and connecting on a separate ticket SYD-AKL. BA16 arrives 6:55AM. Currently on QF3 which departs at 9:45AM.

There is one earlier (8:55AM) which is a possibility, and also, in case of delay a few later on.

Do Qantas offer any sort of same-day change? I'm booked on a flex ticket for what it's worth. As far as I could tell the only difference between Flex and Saver (with regard to changes) is whether you get charged $100AUD for the privilege.