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.
✓ Today’s run finished
Today, last fix heading to Haddenham & Thame Parkway at 09:58 −1 min
The mini-map returns when the train runs
On-time · 30 days
86%
19/22 runs under 3 min
RT coverage: 22 full · 0 partial · 0 no data
On-time · 90 days
81%
52/64 runs under 3 min
RT coverage: 64 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+3min
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 1 Sept Max en route +18 min · last fix heading to 69416 +12 min
- Tue 25 Aug Max en route +7 min · last fix heading to 69416 +7 min
- Mon 26 Oct Max en route +9 min · last fix heading to Haddenham & Thame Parkway +6 min
- Tue 4 Aug Max en route +9 min · last fix heading to 69416 +6 min
- Fri 4 Sept Max en route +4 min · last fix heading to 69416 +4 min
Distribution · 90 days
64 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 2% · 1
- On time 80% · 51
- 3–10 min 17% · 11
- 10–30 min 2% · 1
- 30+ min 0% · 0
On-time by weekday
- 77% M n=13
- 69% T n=13
- 85% W n=13
- 85% T n=13
- 92% F n=12
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 29 Oct | Haddenham & Thame Parkway 09:58 | −1 min | +1 min |
| Wed 28 Oct | Haddenham & Thame Parkway 09:58 | −1 min | +1 min |
| Tue 27 Oct | Haddenham & Thame Parkway 10:02 | +3 min | +3 min |
| Mon 26 Oct | Haddenham & Thame Parkway 10:05 | +6 min | +9 min |
| Fri 23 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +1 min |
| Thu 22 Oct | Haddenham & Thame Parkway 10:02 | +3 min | +6 min |
| Wed 21 Oct | Haddenham & Thame Parkway 10:00 | +1 min | +1 min |
| Tue 20 Oct | Haddenham & Thame Parkway 10:00 | +1 min | +1 min |
| Mon 19 Oct | Haddenham & Thame Parkway 09:58 | −1 min | — |
| Fri 16 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +1 min |
| Thu 15 Oct | Haddenham & Thame Parkway 09:58 | −1 min | +1 min |
| Wed 14 Oct | Haddenham & Thame Parkway 09:58 | −1 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 | −1 min | — |
| Thu 8 Oct | Haddenham & Thame Parkway 09:58 | −1 min | +2 min |
| Wed 7 Oct | Haddenham & Thame Parkway 09:58 | −1 min | — |
| Tue 6 Oct | Haddenham & Thame Parkway 09:59 | 0 min | +4 min |
| Mon 5 Oct | 69416 09:58 | −1 min | — |
| Fri 2 Oct | 69416 10:01 | +2 min | +2 min |
| Thu 1 Oct | 69416 09:57 | −1 min | — |
| Wed 30 Sept | 69416 09:58 | 0 min | +4 min |
| Tue 29 Sept | 69416 09:58 | −1 min | +2 min |
| Mon 28 Sept | 69416 09:58 | −1 min | +1 min |
| Fri 25 Sept | 69416 09:58 | −1 min | — |
| Thu 24 Sept | 69416 09:58 | −1 min | +1 min |
| Wed 23 Sept | 69416 09:59 | −1 min | — |
| Tue 22 Sept | 69416 09:59 | 0 min | — |
| Mon 21 Sept | 69416 10:02 | +3 min | +8 min |
| Fri 18 Sept | 69416 10:00 | +1 min | +1 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.