5,282 Thames Valley Buses bus journeys followed to their destination across 81 days, 15 Aug 2026 to 3 Nov 2026. 70% arrived on time by the GB bus standard, and 7% arrived early.
That is about 65 journeys a day, 0.1% of all the bus journeys we followed on the same dates.
Its on-time share is within a few points of the 70% for every operator we followed on those dates. It ranks 16 of 73 operators with a page here.
Its buses run late more often than early, 23% of journeys late and 1.7% more than fifteen minutes down, so congestion rather than the timetable is what holds the on-time figure back.
Averaged across every journey, its buses arrived 3.1 min late, against 0.1 min early for all operators on the same dates.
Its best day was Sunday, 4 October 2026, 97% on time over 62 journeys, and its worst Thursday, 10 September 2026, at 41% over 66.
Thames Valley Buses in numbers
Days covered
81
15 Aug 2026 to 3 Nov 2026
Journeys followed
5,282
0.1% of 10,197,892 on the same dates
…on time
3,720
70.4% · all operators 69.8%
…early
359
6.8% · all operators 24.5%
…late
1,203
22.8% · all operators 5.6%
…of which more than 15 minutes late
89
1.7%
Average arrival
3.1 min late
all operators 0.1 min early
Rank by on-time share
16
of 73 operators with a page
These are the 5,282 Thames Valley Buses journeys we followed to within 250 metres of their last
stop in the urban areas we sample, so they describe its running where we sample rather than on
every route it operates. On time, early and late add up to every journey; "more than 15 minutes
late" is part of late. How bus punctuality is measured and why so many buses arrive early.