Chiltern Railways 631T73
View line Chiltern Railways
Alerts for train 631T73
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 ยท 30 days
96%
24/25 runs under 3 min
RT coverage: 25 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
83%
67/81 runs under 3 min
RT coverage: 81 full ยท 0 partial ยท 0 no data
Typical delay
โ1min
Median at arrival, 90 days
30 days: โ1 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +2 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Sat 12 Sept Max en route +50 min ยท last fix heading to 69440 +50 min
- Fri 24 Jul Max en route +50 min ยท last fix heading to Oxford Parkway +44 min
- Fri 11 Sept Max en route +41 min ยท last fix heading to Oxford Parkway +40 min
- Thu 6 Aug Max en route +22 min ยท last fix heading to Gerrards Cross +22 min
- Thu 30 Jul Max en route +23 min ยท last fix heading to 74449 +21 min
Distribution ยท 90 days
81 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 31% ยท 25
- On time 52% ยท 42
- 3โ10 min 10% ยท 8
- 10โ30 min 4% ยท 3
- 30+ min 4% ยท 3
On-time by weekday
- 90% M n=10
- 100% T n=10
- 91% W n=11
- 75% T n=12
- 69% F n=13
- 85% S n=13
- 75% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Oxford Parkway 00:36 | +2 min | +3 min |
| Sat 10 Oct | Oxford Parkway 00:36 | 0 min | +1 min |
| Fri 9 Oct | Oxford Parkway 01:18 | +2 min | +2 min |
| Thu 8 Oct | Oxford Parkway 01:09 | โ7 min | +1 min |
| Wed 7 Oct | Oxford Parkway 01:11 | โ5 min | +2 min |
| Tue 6 Oct | Oxford Parkway 01:10 | โ6 min | +3 min |
| Mon 5 Oct | Oxford Parkway 01:10 | โ6 min | +2 min |
| Sun 4 Oct | 74425 00:35 | +1 min | +3 min |
| Sat 3 Oct | 69440 01:10 | โ6 min | โ |
| Fri 2 Oct | 69440 00:59 | โ2 min | +1 min |
| Thu 1 Oct | 74449 00:59 | โ1 min | +3 min |
| Wed 30 Sept | 74449 00:59 | +3 min | +5 min |
| Tue 29 Sept | 69440 00:59 | โ2 min | +1 min |
| Mon 28 Sept | 69440 00:59 | โ2 min | โ |
| Sun 27 Sept | 74425 00:33 | โ1 min | +2 min |
| Sat 26 Sept | 74425 00:35 | 0 min | โ |
| Fri 25 Sept | 69440 00:59 | โ2 min | +4 min |
| Thu 24 Sept | 69440 00:59 | โ2 min | +1 min |
| Sun 20 Sept | 74425 00:34 | 0 min | +1 min |
| Sat 19 Sept | 74425 00:35 | 0 min | โ |
| Fri 18 Sept | 69440 00:59 | โ1 min | โ |
| Thu 17 Sept | 69440 00:59 | โ2 min | +2 min |
| Wed 16 Sept | 69440 00:59 | +2 min | +3 min |
| Tue 15 Sept | 69440 00:59 | โ2 min | +7 min |
| Mon 14 Sept | 69440 00:59 | โ1 min | +2 min |
| Sat 12 Sept | 69440 02:06 | +50 min | +50 min |
| Fri 11 Sept | Oxford Parkway 00:59 | +40 min | +41 min |
| Thu 10 Sept | 69440 00:59 | โ2 min | +2 min |
| Wed 9 Sept | 69440 00:59 | +2 min | +10 min |
| Tue 8 Sept | 69440 00:59 | +1 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.