Chiltern Railways 661H79
View line Chiltern Railways
Alerts for train 661H79
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
75%
3/4 runs under 3 min
RT coverage: 4 full · 0 partial · 0 no data
On-time · 90 days
67%
10/15 runs under 3 min
RT coverage: 15 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
P90
+6min
9 in 10 runs arrive with less than this
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
- Sat 24 Oct Max en route +9 min · last fix heading to South Ruislip +9 min
- Sat 29 Aug Max en route +7 min · last fix heading to 63018 +6 min
- Sat 3 Oct Max en route +5 min · last fix heading to 63018 +5 min
- Sat 15 Aug Max en route +5 min · last fix heading to 63018 +4 min
- Sat 19 Sept Max en route +4 min · last fix heading to 63018 +3 min
Distribution · 90 days
15 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 7% · 1
- On time 60% · 9
- 3–10 min 33% · 5
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 62% S n=13
- 100% S n=2
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Wembley Stadium 21:55 | +2 min | +2 min |
| Sat 24 Oct | South Ruislip 22:02 | +9 min | +9 min |
| Sat 17 Oct | Wembley Stadium 21:53 | 0 min | +2 min |
| Sat 10 Oct | Wembley Stadium 21:58 | +1 min | +3 min |
| Sat 3 Oct | 63018 21:51 | +5 min | +5 min |
| Sat 26 Sept | 63018 21:55 | +2 min | +4 min |
| Sun 20 Sept | 63018 21:57 | +2 min | +4 min |
| Sat 19 Sept | 63018 22:00 | +3 min | +4 min |
| Sun 13 Sept | 69440 20:36 | −2 min | +1 min |
| Sat 12 Sept | 69440 21:08 | −1 min | +4 min |
| Sat 5 Sept | 63018 21:55 | +2 min | +3 min |
| Sat 29 Aug | 63018 21:59 | +6 min | +7 min |
| Sat 22 Aug | 63018 21:53 | 0 min | +2 min |
| Sat 15 Aug | 63018 21:57 | +4 min | +5 min |
| Sat 8 Aug | 63018 21:54 | +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.