The data, which covers July to September, shows a 4.9 percentage point rise in punctuality compared to the previous quarter, the largest improvement of any UK train operator.
This puts TfW’s punctuality at 84.1 per cent, moving them to 12th out of the UK’s 24 railway companies.
TfW also had the highest improvement in punctuality between April and June 2025.
The improvement in performance came over the summer during increased passenger demand for major events including two Oasis reunion tour gigs.
Customer satisfaction also rose over the same period, scoring 88 per cent, up from 84 per cent in June.
The line is the second highest in the UK for perceived value for money, and is above the national average for crowding on board and personal safety scores, with satisfaction levels of 83 per cent and 91 per cent respectively.
TfW’s chief operating officer Marie Daly said: “This is the second quarter of significant improvement in our punctuality performance as we focus on delivering the best-possible service for our customers.
“We know there is still work to do, but as more of our £800m fleet of brand-new trains come into service we are aiming to improve performance and the customer experience across the network.”
The ORR figures showed a 1.4 percentage point reduction in cancellations between July and September, even amidst incidents such as cable thefts on the Rhymney Valley lines causing large-scale cancellations and damages over £750,000.
Overall TfW has moved up to 16th out of the 24 companies for cancellations.
Despite the improvements, TfW remains focused on achieving similar successes across the entire Wales and Borders network.
