On Sunday 30 January, QF2 took off from LHR with B789 VH-ZNF at 1016, only a few minutes late, arriving DRW on Monday 31 at 1215, half an hour behind. It then became airborne from DRW at 1410, 55 minutes after scheduled pushback, arriving SYD at 1940 hours, 35 minutes behind.
Monday 31's QF2 from LHR was in the sky at 1017, almost identical to the previous day, with DRW arrival estimated at 1244 hours, 59 late. I assume the winds have been more against this flight than the previous day's. Both flights took/are taking a similar route. This will inevitably mean a delayed arrival into SYD tonight.
QF10 (1120 hours ex LHR) on 31 January took off at 1145 with slated DRW arrival today 1357, 42 minutes tardy, so the arrival of VH-ZNJ will be similarly delayed into MEL this evening.