Chiltern Railways 661H48
View line Chiltern Railways
Alerts for train 661H48
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
79%
23/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
68%
60/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +1 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +6 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
- Tue 29 Sept Max en route +70 min · last fix heading to West Ruislip +70 min
- Fri 21 Aug Max en route +61 min · last fix heading to 63018 +52 min
- Thu 20 Aug Max en route +41 min · last fix heading to 63018 +37 min
- Tue 1 Sept Max en route +23 min · last fix heading to 63018 +19 min
- Fri 14 Aug Max en route +21 min · last fix heading to 63018 +16 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 13% · 11
- On time 56% · 49
- 3–10 min 24% · 21
- 10–30 min 5% · 4
- 30+ min 3% · 3
On-time by weekday
- 83% M n=12
- 62% T n=13
- 77% W n=13
- 54% T n=13
- 33% F n=12
- 77% S n=13
- 92% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Wembley Stadium 15:54 | +1 min | +2 min |
| Fri 30 Oct | Wembley Stadium 15:53 | +2 min | +3 min |
| Thu 29 Oct | Wembley Stadium 15:54 | +3 min | +4 min |
| Wed 28 Oct | Leamington Spa 15:14 | +15 min | +15 min |
| Tue 27 Oct | Wembley Stadium 15:54 | +2 min | +3 min |
| Mon 26 Oct | Wembley Stadium 15:51 | +1 min | +1 min |
| Sun 25 Oct | Wembley Stadium 15:55 | −5 min | +2 min |
| Sat 24 Oct | Wembley Stadium 15:56 | +2 min | +3 min |
| Fri 23 Oct | Wembley Stadium 15:51 | 0 min | +7 min |
| Thu 22 Oct | Wembley Stadium 15:51 | 0 min | +5 min |
| Wed 21 Oct | Wembley Stadium 15:52 | +1 min | +6 min |
| Tue 20 Oct | Wembley Stadium 15:52 | +1 min | +1 min |
| Mon 19 Oct | Wembley Stadium 15:56 | +5 min | +5 min |
| Sun 18 Oct | Wembley Stadium 15:58 | −2 min | +5 min |
| Sat 17 Oct | Wembley Stadium 15:52 | −1 min | +3 min |
| Fri 16 Oct | Wembley Stadium 15:53 | +2 min | +11 min |
| Thu 15 Oct | Wembley Stadium 15:54 | +3 min | +10 min |
| Wed 14 Oct | Wembley Stadium 15:54 | +2 min | +5 min |
| Tue 13 Oct | Wembley Stadium 16:00 | +9 min | +12 min |
| Mon 12 Oct | Wembley Stadium 15:53 | +2 min | +5 min |
| Sun 11 Oct | Wembley Stadium 16:00 | 0 min | +5 min |
| Sat 10 Oct | Wembley Stadium 16:01 | 0 min | +3 min |
| Fri 9 Oct | Wembley Stadium 16:00 | +9 min | +10 min |
| Thu 8 Oct | Wembley Stadium 15:51 | +1 min | +4 min |
| Wed 7 Oct | Wembley Stadium 15:52 | +1 min | +6 min |
| Tue 6 Oct | Wembley Stadium 15:55 | 0 min | +1 min |
| Mon 5 Oct | South Ruislip 15:48 | +1 min | +2 min |
| Sun 4 Oct | 63018 15:58 | −2 min | +4 min |
| Sat 3 Oct | 63018 15:55 | +2 min | +3 min |
| Fri 2 Oct | 63018 15:58 | +7 min | +8 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.