West Midlands Trains 421U40
View line West Midlands Trains
Alerts for train 421U40
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line West Midlands Trains.
✓ Today’s run finished
Today, last fix heading to Harrow & Wealdstone at 19:42 +10 min
The mini-map returns when the train runs
On-time · 30 days
23%
6/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
25%
21/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+5min
Median at arrival, 90 days
30 days: +4 min
P90
+16min
9 in 10 runs arrive with less than this
30 days: +11 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Sun 16 Aug Max en route +49 min · last fix heading to 72268 +49 min
- Wed 12 Aug Max en route +40 min · last fix heading to 72268 +40 min
- Thu 22 Oct Max en route +35 min · last fix heading to Bletchley +35 min
- Sun 9 Aug Max en route +32 min · last fix heading to 72268 +32 min
- Thu 10 Sept Max en route +20 min · last fix heading to 72268 +20 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 24% · 20
- 3–10 min 45% · 38
- 10–30 min 26% · 22
- 30+ min 5% · 4
On-time by weekday
- 23% M n=13
- 31% T n=13
- 8% W n=12
- 31% T n=13
- 15% F n=13
- 40% S n=10
- 27% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Harrow & Wealdstone 19:42 | +10 min | +10 min |
| Thu 22 Oct | Bletchley 19:31 | +35 min | +35 min |
| Wed 21 Oct | Harrow & Wealdstone 19:36 | +3 min | +5 min |
| Tue 20 Oct | Harrow & Wealdstone 19:42 | +10 min | +10 min |
| Mon 19 Oct | Wembley Central 19:36 | +4 min | +4 min |
| Fri 16 Oct | Harrow & Wealdstone 19:35 | +3 min | +4 min |
| Thu 15 Oct | Wembley Central 19:35 | +3 min | +3 min |
| Wed 14 Oct | Harrow & Wealdstone 19:35 | +3 min | +5 min |
| Tue 13 Oct | Harrow & Wealdstone 19:31 | −1 min | +4 min |
| Mon 12 Oct | Harrow & Wealdstone 19:40 | +8 min | +9 min |
| Fri 9 Oct | Harrow & Wealdstone 20:38 | +11 min | +15 min |
| Thu 8 Oct | Wembley Central 19:32 | 0 min | +4 min |
| Wed 7 Oct | Harrow & Wealdstone 19:35 | +3 min | +3 min |
| Tue 6 Oct | Harrow & Wealdstone 19:34 | +2 min | +4 min |
| Mon 5 Oct | Wembley Central 19:41 | +9 min | +9 min |
| Sun 4 Oct | 72268 19:44 | +11 min | +11 min |
| Sat 3 Oct | 72268 19:36 | +4 min | +7 min |
| Fri 2 Oct | 72268 19:36 | +4 min | +4 min |
| Thu 1 Oct | 72268 19:31 | −1 min | +3 min |
| Wed 30 Sept | 72268 21:21 | 0 min | +2 min |
| Tue 29 Sept | 72268 19:39 | +7 min | +7 min |
| Mon 28 Sept | 72268 19:35 | +3 min | +3 min |
| Sun 27 Sept | 72268 19:38 | +5 min | +8 min |
| Sat 26 Sept | 72268 19:34 | +1 min | +4 min |
| Fri 25 Sept | 72268 19:35 | +3 min | +4 min |
| Thu 24 Sept | 72268 19:37 | +5 min | +5 min |
| Wed 23 Sept | 72268 19:36 | +4 min | +5 min |
| Tue 22 Sept | 72268 19:43 | +11 min | +12 min |
| Mon 21 Sept | 72268 19:33 | 0 min | +7 min |
| Sun 20 Sept | 72268 19:31 | −2 min | +1 min |
Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 11 July 2026.