Chiltern Railways 631J52
View line Chiltern Railways
Alerts for train 631J52
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
44%
4/9 runs under 3 min
RT coverage: 9 full · 0 partial · 0 no data
On-time · 90 days
50%
14/28 runs under 3 min
RT coverage: 28 full · 0 partial · 0 no data
Typical delay
+3min
Median at arrival, 90 days
30 days: +3 min
P90
+9min
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
- Mon 31 Aug Max en route +15 min · last fix heading to Margate +15 min
- Sat 12 Sept Max en route +16 min · last fix heading to Margate +14 min
- Mon 28 Sept Max en route +11 min · last fix heading to — +11 min
- Sat 22 Aug Max en route +8 min · last fix heading to Margate +8 min
- Sat 17 Oct Max en route +7 min · last fix heading to Margate +7 min
Distribution · 90 days
28 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 50% · 14
- 3–10 min 39% · 11
- 10–30 min 11% · 3
- 30+ min 0% · 0
On-time by weekday
- 0% M n=2
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 31% S n=13
- 77% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 18 Oct | Stourbridge Junction 20:10 | −1 min | +10 min |
| Sat 17 Oct | Margate 19:26 | +7 min | +7 min |
| Sun 11 Oct | Stourbridge Junction 20:10 | −1 min | +3 min |
| Sat 10 Oct | Margate 19:23 | +5 min | +6 min |
| Sun 4 Oct | Stourbridge Junction 20:10 | −1 min | +9 min |
| Sat 3 Oct | Margate 19:19 | +1 min | +3 min |
| Mon 28 Sept | — 10:06 | +11 min | +11 min |
| Sun 27 Sept | Stourbridge Junction 20:15 | +3 min | +13 min |
| Sat 26 Sept | Margate 19:22 | +4 min | +5 min |
| Sun 20 Sept | 66421 19:43 | 0 min | +3 min |
| Sat 19 Sept | Margate 19:20 | +3 min | +5 min |
| Sun 13 Sept | Wye 22:09 | +2 min | +3 min |
| Sat 12 Sept | Margate 19:32 | +14 min | +16 min |
| Sun 6 Sept | Stourbridge Junction 20:16 | +5 min | +9 min |
| Sat 5 Sept | Margate 19:25 | +7 min | +7 min |
| Mon 31 Aug | Margate 19:34 | +15 min | +15 min |
| Sun 30 Aug | Stourbridge Junction 20:11 | 0 min | +8 min |
| Sat 29 Aug | Margate 19:18 | 0 min | +3 min |
| Sun 23 Aug | Stourbridge Junction 20:17 | +6 min | +12 min |
| Sat 22 Aug | Margate 19:26 | +8 min | +8 min |
| Sun 16 Aug | Stourbridge Junction 23:13 | 0 min | +8 min |
| Sat 15 Aug | Margate 19:23 | +5 min | +6 min |
| Sun 9 Aug | Stourbridge Junction 20:10 | −1 min | +5 min |
| Sat 8 Aug | Margate 19:23 | +4 min | +7 min |
| Sun 2 Aug | Stourbridge Junction 20:11 | 0 min | +6 min |
| Sat 1 Aug | Margate 19:19 | +1 min | +3 min |
| Sun 26 Jul | Margate 19:18 | 0 min | +2 min |
| Sat 25 Jul | Margate 19:19 | +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.