Chiltern Railways 631U15
View line Chiltern Railways
Alerts for train 631U15
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
95%
19/20 runs under 3 min
RT coverage: 20 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
84%
53/63 runs under 3 min
RT coverage: 63 full ยท 0 partial ยท 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: โ1 min
P90
+3min
9 in 10 runs arrive with less than this
30 days: +1 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
- Tue 1 Sept Max en route +18 min ยท last fix heading to 69416 +12 min
- Tue 25 Aug Max en route +7 min ยท last fix heading to 69416 +7 min
- Tue 4 Aug Max en route +9 min ยท last fix heading to 69416 +6 min
- Fri 4 Sept Max en route +4 min ยท last fix heading to 69416 +4 min
- Mon 3 Aug Max en route +6 min ยท last fix heading to 69416 +4 min
Distribution ยท 90 days
63 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% ยท 1
- On time 83% ยท 52
- 3โ10 min 14% ยท 9
- 10โ30 min 2% ยท 1
- 30+ min 0% ยท 0
On-time by weekday
- 83% M n=12
- 75% T n=12
- 85% W n=13
- 85% T n=13
- 92% F n=13
- โ S n=0
- โ S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 16 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +1 min |
| Thu 15 Oct | Haddenham & Thame Parkway 09:58 | โ1 min | +1 min |
| Wed 14 Oct | Haddenham & Thame Parkway 09:58 | โ1 min | +1 min |
| Tue 13 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +1 min |
| Mon 12 Oct | Haddenham & Thame Parkway 10:00 | +1 min | +2 min |
| Fri 9 Oct | Haddenham & Thame Parkway 09:58 | โ1 min | โ |
| Thu 8 Oct | Haddenham & Thame Parkway 09:58 | โ1 min | +2 min |
| Wed 7 Oct | Haddenham & Thame Parkway 09:58 | โ1 min | โ |
| Tue 6 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +4 min |
| Mon 5 Oct | 69416 09:58 | โ1 min | โ |
| Fri 2 Oct | 69416 10:01 | +2 min | +2 min |
| Thu 1 Oct | 69416 09:57 | โ1 min | โ |
| Wed 30 Sept | 69416 09:58 | 0 min | +4 min |
| Tue 29 Sept | 69416 09:58 | โ1 min | +2 min |
| Mon 28 Sept | 69416 09:58 | โ1 min | +1 min |
| Fri 25 Sept | 69416 09:58 | โ1 min | โ |
| Thu 24 Sept | 69416 09:58 | โ1 min | +1 min |
| Wed 23 Sept | 69416 09:59 | โ1 min | โ |
| Tue 22 Sept | 69416 09:59 | 0 min | โ |
| Mon 21 Sept | 69416 10:02 | +3 min | +8 min |
| Fri 18 Sept | 69416 10:00 | +1 min | +1 min |
| Thu 17 Sept | 69416 09:59 | โ1 min | +1 min |
| Wed 16 Sept | 69416 09:58 | 0 min | โ |
| Tue 15 Sept | 69416 09:58 | โ1 min | +2 min |
| Mon 14 Sept | 69416 09:58 | โ1 min | +1 min |
| Fri 11 Sept | 69416 10:00 | +1 min | +2 min |
| Thu 10 Sept | 69416 10:01 | +2 min | +2 min |
| Wed 9 Sept | 69416 10:02 | +3 min | +3 min |
| Tue 8 Sept | 69416 10:01 | +2 min | +8 min |
| Mon 7 Sept | 69416 09:58 | โ1 min | โ |
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.