22,115 First South & West Wales bus journeys followed to their destination across 71 days, 15 Aug 2026 to 24 Oct 2026. 57% arrived on time by the GB bus standard, and 36% arrived early.
That is about 311 journeys a day, 0.2% of all the bus journeys we followed on the same dates.
Its on-time share is 13 points below the 70% for every operator we followed on those dates. It ranks 50 of 71 operators with a page here.
Its buses run early far more often than late, 4.8 early arrivals for every late one, while 7% arrived late. Early running counts against the standard, so on these routes the timetable, more than the traffic, is what holds the on-time figure back.
Averaged across every journey, its buses arrived 0.2 min early, against 0.1 min early for all operators on the same dates.
Its best day was Thursday, 8 October 2026, 71% on time over 117 journeys, and its worst Monday, 14 September 2026, at 41% over 140.
First South & West Wales in numbers
Days covered
71
15 Aug 2026 to 24 Oct 2026
Journeys followed
22,115
0.2% of 8,972,755 on the same dates
…on time
12,584
56.9% · all operators 69.8%
…early
7,874
35.6% · all operators 24.5%
…late
1,657
7.5% · all operators 5.7%
…of which more than 15 minutes late
179
0.8%
Average arrival
0.2 min early
all operators 0.1 min early
Rank by on-time share
50
of 71 operators with a page
These are the 22,115 First South & West Wales 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.