In the last month, QF23/QF24 SYD - BKK v.v. have been much more punctual, but on Monday 3 February, the former departed SYD at 1158 hours, 88 minutes behind schedule, so arrival this afternoon local time should be 1710, an hour late. This will delay redeye QF24.
QF80 ex NRT arrived in MEL this morning just 14 late at 0809 hours but 'forming its own', the same aircraft did not depart on QF79, the 0920 hours back to NRT until 1139, 139 minutes late, and then took off at 1203 hours. However arrival is estimated as 2105 mid evening local time, 205 minutes behind the timetable. Aircraft is A333 VH-QPE. QF79/QF80 punctuality has been poor in the last few weeks, unlike previously, so it's the reverse of the '23/24' improvement. Upon arrival in japan, QF79 can form either QF62 to BNE or aforementioned QF80 to MEL, but one can't see a set pattern.
The 0935 hours SYD - HKG (QF127, A388 VH-OQL) is another with a good timekeeping record but on Monday it pushed back 65 late at 1040, meaning arrival is likely at about 1630, 40 minutes late.
QF61, the 0925 hours BNE - NRT is also normally pretty good but on Monday it departed at 1041, 76 late. Expected at gate arrival has become 2001 hours, 151 minutes late.
These estimated arrivals (taken from the QF website) for QF79 and QF61 look suspiciously like they're overestimating the delays by an hour, given Japan is two hours behind AEDT and an hour behind AEST.
On Sunday 2, the B744 on QF28 from SCL to SYD pushed back at 1517 hours mid afternoon (102 minutes behind the timetable) so SYD arrival should be 1843 early this evening (Monday 3), 53 minutes down.