← Great Western Railway Historical
Great Western Railway

London - South Wales

Historical
·
Daily Monthly
Average on time
69.1%
Over this period
Best month
81%
Worst month
48.4%
Data points
31
Months tracked
Monthly PPM
Percentage of trains on time at final destination
On time
Late
V. late/cancelled
Data
Month
Breakdown
On time
Late
V. late
2026-08
48.4%
28.5%
23.1%
2026-07
69.9%
21.4%
8.7%
2026-06
67.1%
20.2%
12.7%
2026-05
72.7%
17.7%
9.6%
2026-04
75.5%
14.5%
10%
2026-03
79.6%
13.9%
6.5%
2026-02
81%
13.1%
5.9%
2026-01
75.9%
14.9%
9.2%
2025-12
65.1%
21.1%
13.8%
2025-11
62.2%
21.7%
16.1%
2025-10
69.4%
19.7%
10.8%
2025-09
69.3%
18.6%
12.1%
2025-08
73%
17.6%
9.4%
2025-07
71.1%
20.1%
8.8%
2025-06
77%
15.2%
7.8%
2025-05
72.3%
15.9%
11.9%
2025-04
73.9%
15.3%
10.9%
2025-03
70.4%
18.1%
11.5%
2025-02
75.5%
16.3%
8.2%
2025-01
70.5%
19.8%
9.7%
2024-12
62.4%
21.2%
16.4%
2024-11
54.6%
25.5%
19.9%
2024-10
59.6%
26.8%
13.7%
2024-09
61.4%
19.7%
18.9%
2024-08
71.9%
19.5%
8.6%
2024-07
70.6%
17.3%
12.1%
2024-06
66.8%
19.2%
14%
2024-05
71.9%
16.5%
11.6%
2024-04
76%
14%
10%
2024-03
68%
20.8%
11.2%
2024-02
60.5%
20.8%
18.7%