Chiltern Railways 661H43
View line Chiltern Railways
Alerts for train 661H43
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Chiltern Railways.
The mini-map returns when the train runs
On-time · 30 days
64%
16/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
80%
60/75 runs under 3 min
RT coverage: 75 full · 0 partial · 0 no data
Typical delay
−2min
Median at arrival, 90 days
30 days: +1 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +8 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
- Fri 21 Aug Max en route +72 min · last fix heading to 63018 +69 min
- Sat 22 Aug Max en route +32 min · last fix heading to 63018 +31 min
- Fri 28 Aug Max en route +41 min · last fix heading to 63018 +28 min
- Mon 26 Oct Max en route +19 min · last fix heading to South Ruislip +11 min
- Mon 19 Oct Max en route +10 min · last fix heading to Wembley Stadium +9 min
Distribution · 90 days
75 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 52% · 39
- On time 28% · 21
- 3–10 min 15% · 11
- 10–30 min 3% · 2
- 30+ min 3% · 2
On-time by weekday
- 83% M n=12
- 100% T n=13
- 85% W n=13
- 75% T n=12
- 85% F n=13
- 50% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Wembley Stadium 14:25 | +2 min | +3 min |
| Fri 30 Oct | Wembley Stadium 14:29 | −2 min | +2 min |
| Thu 29 Oct | Wembley Stadium 14:36 | +5 min | +5 min |
| Wed 28 Oct | Wembley Stadium 14:34 | +3 min | +3 min |
| Tue 27 Oct | Wembley Stadium 14:33 | +1 min | +1 min |
| Mon 26 Oct | South Ruislip 14:42 | +11 min | +19 min |
| Sat 24 Oct | Wembley Stadium 14:31 | +8 min | +9 min |
| Fri 23 Oct | Wembley Stadium 14:32 | +1 min | +2 min |
| Thu 22 Oct | Wembley Stadium 14:35 | +4 min | +4 min |
| Wed 21 Oct | Wembley Stadium 14:27 | −4 min | +4 min |
| Tue 20 Oct | West Ruislip 14:32 | +1 min | +4 min |
| Mon 19 Oct | Wembley Stadium 14:40 | +9 min | +10 min |
| Sat 17 Oct | Wembley Stadium 14:24 | +1 min | +3 min |
| Fri 16 Oct | Wembley Stadium 14:31 | 0 min | +7 min |
| Thu 15 Oct | Wembley Stadium 14:34 | +3 min | +3 min |
| Wed 14 Oct | Wembley Stadium 14:35 | +4 min | +4 min |
| Tue 13 Oct | Wembley Stadium 14:28 | −3 min | +5 min |
| Mon 12 Oct | Wembley Stadium 14:34 | +2 min | +2 min |
| Sat 10 Oct | Wembley Stadium 14:34 | +8 min | +9 min |
| Fri 9 Oct | Wembley Stadium 14:27 | −4 min | +2 min |
| Thu 8 Oct | Wembley Stadium 14:28 | −3 min | +2 min |
| Wed 7 Oct | Wembley Stadium 14:28 | −3 min | +2 min |
| Tue 6 Oct | Wembley Stadium 14:33 | +2 min | +2 min |
| Mon 5 Oct | Wembley Stadium 14:27 | −4 min | +1 min |
| Sat 3 Oct | 63018 14:23 | 0 min | +2 min |
| Fri 2 Oct | 63018 14:27 | −4 min | +2 min |
| Thu 1 Oct | 63018 14:27 | −4 min | +7 min |
| Wed 30 Sept | 63018 14:28 | −3 min | +1 min |
| Tue 29 Sept | 63018 14:30 | −1 min | +2 min |
| Mon 28 Sept | 63018 14:29 | −2 min | +5 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.