Chiltern Railways 631T31
View line Chiltern Railways
Alerts for train 631T31
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
86%
25/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
84%
71/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +3 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 18 Aug Max en route +21 min · last fix heading to 74425 +20 min
- Mon 20 Jul Max en route +19 min · last fix heading to 74425 +17 min
- Wed 16 Sept Max en route +15 min · last fix heading to 74425 +14 min
- Mon 3 Aug Max en route +9 min · last fix heading to 74425 +7 min
- Thu 6 Aug Max en route +6 min · last fix heading to 74425 +5 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 80% · 68
- 3–10 min 13% · 11
- 10–30 min 4% · 3
- 30+ min 0% · 0
On-time by weekday
- 69% M n=13
- 69% T n=13
- 83% W n=12
- 91% T n=11
- 75% F n=12
- 100% S n=12
- 100% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 13 Oct | Oxford Parkway 14:07 | 0 min | +2 min |
| Mon 12 Oct | Oxford Parkway 14:07 | −1 min | +2 min |
| Sun 11 Oct | Oxford Parkway 14:14 | 0 min | +1 min |
| Sat 10 Oct | Oxford Parkway 14:12 | −1 min | — |
| Fri 9 Oct | Oxford Parkway 14:09 | +1 min | +3 min |
| Thu 8 Oct | Oxford Parkway 14:06 | −1 min | +1 min |
| Wed 7 Oct | Oxford Parkway 14:07 | 0 min | +3 min |
| Tue 6 Oct | Oxford Parkway 14:10 | +3 min | +6 min |
| Mon 5 Oct | Oxford Parkway 14:06 | −1 min | +3 min |
| Sun 4 Oct | 74425 14:14 | 0 min | +1 min |
| Sat 3 Oct | 74425 14:12 | −1 min | — |
| Fri 2 Oct | 74425 14:08 | +1 min | +4 min |
| Thu 1 Oct | 74425 14:05 | −2 min | +2 min |
| Wed 30 Sept | 74425 14:06 | −1 min | +2 min |
| Tue 29 Sept | 74425 14:05 | −2 min | +1 min |
| Mon 28 Sept | 74425 14:07 | 0 min | +2 min |
| Sun 27 Sept | 74425 14:14 | 0 min | +1 min |
| Sat 26 Sept | 74425 14:13 | 0 min | +3 min |
| Fri 25 Sept | 74425 14:10 | +4 min | +5 min |
| Thu 24 Sept | 74425 14:06 | −1 min | +2 min |
| Wed 23 Sept | 74425 14:06 | −1 min | +1 min |
| Tue 22 Sept | 74425 14:06 | −1 min | +2 min |
| Mon 21 Sept | 74425 14:06 | −1 min | +2 min |
| Sun 20 Sept | 74425 14:14 | 0 min | +1 min |
| Sat 19 Sept | 74425 14:12 | −1 min | — |
| Fri 18 Sept | 74425 14:08 | +1 min | +3 min |
| Thu 17 Sept | 74425 14:06 | −1 min | +1 min |
| Wed 16 Sept | 74425 14:21 | +14 min | +15 min |
| Tue 15 Sept | 74425 14:10 | +3 min | +6 min |
| Mon 14 Sept | 74425 14:06 | −1 min | +2 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.