West Midlands Trains 421U38
View line West Midlands Trains
Alerts for train 421U38
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.
The mini-map returns when the train runs
On-time · 30 days
37%
10/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
24%
20/83 runs under 3 min
RT coverage: 83 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +4 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +15 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
- Wed 2 Sept Max en route +53 min · last fix heading to Bletchley +53 min
- Sun 16 Aug Max en route +46 min · last fix heading to 72268 +46 min
- Sat 3 Oct Max en route +39 min · last fix heading to Bletchley +39 min
- Fri 21 Aug Max en route +35 min · last fix heading to 70070 +35 min
- Wed 12 Aug Max en route +31 min · last fix heading to Bletchley +31 min
Distribution · 90 days
83 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 24% · 20
- 3–10 min 34% · 28
- 10–30 min 36% · 30
- 30+ min 6% · 5
On-time by weekday
- 9% M n=11
- 50% T n=10
- 25% W n=12
- 23% T n=13
- 31% F n=13
- 17% S n=12
- 17% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 12 Oct | Wembley Central 18:48 | +15 min | +17 min |
| Fri 9 Oct | Harrow & Wealdstone 18:37 | +4 min | +4 min |
| Thu 8 Oct | Harrow & Wealdstone 18:39 | +6 min | +9 min |
| Wed 7 Oct | Harrow & Wealdstone 18:35 | +2 min | +7 min |
| Tue 6 Oct | Harrow & Wealdstone 18:36 | +3 min | +4 min |
| Mon 5 Oct | Harrow & Wealdstone 18:38 | +8 min | +8 min |
| Sun 4 Oct | 72268 18:47 | +14 min | +17 min |
| Sat 3 Oct | Bletchley 18:36 | +39 min | +39 min |
| Fri 2 Oct | 72268 18:31 | −1 min | +5 min |
| Thu 1 Oct | 72268 18:32 | −1 min | +3 min |
| Wed 30 Sept | 72268 21:23 | +16 min | +17 min |
| Tue 29 Sept | 72268 18:33 | 0 min | +5 min |
| Mon 28 Sept | 72268 18:35 | +3 min | +4 min |
| Sun 27 Sept | Bletchley 18:20 | +23 min | +23 min |
| Sat 26 Sept | 72268 18:35 | +3 min | +9 min |
| Fri 25 Sept | 72268 18:34 | +1 min | +5 min |
| Thu 24 Sept | 72268 18:33 | 0 min | +1 min |
| Wed 23 Sept | 72268 18:37 | +4 min | +7 min |
| Tue 22 Sept | 72268 18:35 | +2 min | +6 min |
| Mon 21 Sept | 72268 18:44 | +11 min | +12 min |
| Sun 20 Sept | 72268 18:37 | +4 min | +4 min |
| Sat 19 Sept | 72268 18:33 | +1 min | +3 min |
| Fri 18 Sept | 72268 18:38 | +6 min | +7 min |
| Thu 17 Sept | 72268 18:40 | +7 min | +7 min |
| Wed 16 Sept | 72268 18:34 | +1 min | +3 min |
| Tue 15 Sept | 70070 17:41 | +7 min | +8 min |
| Mon 14 Sept | 72268 18:35 | +2 min | +5 min |
| Sun 13 Sept | 72268 18:51 | +18 min | +18 min |
| Sat 12 Sept | 72268 18:37 | +5 min | +7 min |
| Fri 11 Sept | 72268 18:34 | +1 min | +3 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.