Chiltern Railways 631U73
View line Chiltern Railways
Alerts for train 631U73
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
75%
6/8 runs under 3 min
RT coverage: 8 full · 0 partial · 0 no data
On-time · 90 days
79%
19/24 runs under 3 min
RT coverage: 24 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +6 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
- Sat 5 Sept Max en route +12 min · last fix heading to 69440 +12 min
- Sat 24 Oct Max en route +7 min · last fix heading to Haddenham & Thame Parkway +7 min
- Sat 15 Aug Max en route +8 min · last fix heading to 69440 +7 min
- Sun 18 Oct Max en route +7 min · last fix heading to Haddenham & Thame Parkway +6 min
- Sun 9 Aug Max en route +4 min · last fix heading to 69440 +4 min
Distribution · 90 days
24 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 25% · 6
- On time 54% · 13
- 3–10 min 17% · 4
- 10–30 min 4% · 1
- 30+ min 0% · 0
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 75% S n=12
- 83% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 25 Oct | Haddenham & Thame Parkway 00:46 | +2 min | +2 min |
| Sat 24 Oct | Haddenham & Thame Parkway 00:49 | +7 min | +7 min |
| Sun 18 Oct | Haddenham & Thame Parkway 00:49 | +6 min | +7 min |
| Sat 17 Oct | Haddenham & Thame Parkway 00:40 | −2 min | — |
| Sun 11 Oct | Haddenham & Thame Parkway 00:42 | −1 min | — |
| Sat 10 Oct | Haddenham & Thame Parkway 00:41 | −2 min | — |
| Sun 4 Oct | 69440 00:44 | 0 min | +2 min |
| Sat 3 Oct | 69440 00:40 | −2 min | +1 min |
| Sun 27 Sept | 69440 00:42 | −1 min | +1 min |
| Sat 26 Sept | 69440 00:46 | −1 min | +1 min |
| Sun 20 Sept | 69416 00:44 | 0 min | +1 min |
| Sat 19 Sept | 69440 00:42 | 0 min | +1 min |
| Sun 6 Sept | 69440 00:47 | −1 min | +1 min |
| Sat 5 Sept | 69440 00:54 | +12 min | +12 min |
| Sun 30 Aug | 69440 00:44 | +1 min | +2 min |
| Sat 29 Aug | 69440 00:40 | −2 min | +2 min |
| Sun 23 Aug | 69440 00:42 | −1 min | +1 min |
| Sat 22 Aug | 69440 00:40 | −2 min | +1 min |
| Sun 16 Aug | 69440 00:47 | −1 min | +3 min |
| Sat 15 Aug | 69440 00:51 | +7 min | +8 min |
| Sun 9 Aug | 69440 00:47 | +4 min | +4 min |
| Sat 8 Aug | 69440 00:40 | −2 min | +1 min |
| Sun 2 Aug | 69440 00:50 | +2 min | +2 min |
| Sat 1 Aug | 69440 00:44 | 0 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.