Updating 789nerd, on Tuesday 11 July 2023, QF4 from JFK to AKL (B789 VH-ZNF) arrived at 0603 hours, 63 minutes late, as on Sunday 9, the 1930 hours scheduled pushback became a 2053 hours takeoff at New York. The second leg, the 0630 hours AKL-SYD was airborne at 0755 local time so SYD arrival should be 0854 hours, 44 late.
Adding to 789nred's information above, QF6 from FCO down to PER, the 1050 hours, is expected to push back at 1230. VH-ZNK is the conveyance. This is because from PER to FCO last night, the 2250 hours timetabled departure saw the plane in the air at 017 hours this morning, so Rome arrival should be 1034, 104 late. It had earlier been delayed from Sydney yesterday evening, with the normal 1820 hours departure becoming takeoff at 1956 despite having been sitting in Sydney since 0617 yesterday morning.
The Monday 10 July '10' with ZNB (1155 hours ex LHR for PER) was airborne at 1323 hours so a 68 minute late arrival today is on the cards, at 1248 hours, making on time arrival in MEL tonight extremely unlikely.
The 0925 hours from MEL to DEL (QF69) seems to have a poor timetkeeping record,. Yesterday was no exception, with takeoff for A332 VH-EBM at 1145 hours resulting in arrival at 1933 hours, 113 minutes behind schedule. The redeye QF70 then took off at 2146 hours local time, so arrioval today should be at around 1414 hours, 104 minutes tardy.
This morning, A333 VH-QPB arrived in HND as QF25 (from Sydney) at 0614, 49 late. This flight has been cancelled once in the last seven days, was five minutes early arriving at gate once but on the other five occasions has been a typical 50 to 65 minutes late arriving. The major reason is that often it's formed by the almost constantly late QF104 from Honolulu. As Flyerqf has said, this should improve from late October 2023 when 'the 25' apparently becomes a B789 on a different roster.