Chiltern Railways 631G39
View line Chiltern Railways
Alerts for train 631G39
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
57%
12/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
56%
34/61 runs under 3 min
RT coverage: 61 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +2 min
P90
+21min
9 in 10 runs arrive with less than this
30 days: +24 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
- Mon 14 Sept Max en route +33 min · last fix heading to Birmingham Snow Hill +33 min
- Tue 22 Sept Max en route +32 min · last fix heading to Birmingham Snow Hill +32 min
- Thu 8 Oct Max en route +32 min · last fix heading to Birmingham Snow Hill +31 min
- Fri 21 Aug Max en route +31 min · last fix heading to Birmingham Snow Hill +31 min
- Fri 28 Aug Max en route +27 min · last fix heading to Birmingham Snow Hill +26 min
Distribution · 90 days
61 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 56% · 34
- 3–10 min 26% · 16
- 10–30 min 11% · 7
- 30+ min 7% · 4
On-time by weekday
- 58% M n=12
- 58% T n=12
- 67% W n=12
- 67% T n=12
- 31% F n=13
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 19 Oct | Birmingham Snow Hill 16:45 | 0 min | +5 min |
| Fri 16 Oct | Birmingham Snow Hill 16:50 | +5 min | +7 min |
| Thu 15 Oct | Birmingham Snow Hill 16:45 | 0 min | +2 min |
| Wed 14 Oct | Birmingham Snow Hill 16:45 | 0 min | +1 min |
| Tue 13 Oct | Tyseley 16:47 | +2 min | +2 min |
| Mon 12 Oct | Birmingham Snow Hill 16:45 | 0 min | +6 min |
| Fri 9 Oct | Birmingham Snow Hill 17:01 | +16 min | +16 min |
| Thu 8 Oct | Birmingham Snow Hill 17:16 | +31 min | +32 min |
| Wed 7 Oct | Birmingham Snow Hill 16:45 | 0 min | +1 min |
| Tue 6 Oct | Birmingham Snow Hill 17:00 | +4 min | +4 min |
| Mon 5 Oct | Birmingham Snow Hill 16:45 | 0 min | +1 min |
| Fri 2 Oct | Birmingham Snow Hill 16:44 | −1 min | — |
| Thu 1 Oct | Birmingham Snow Hill 16:45 | 0 min | +3 min |
| Wed 30 Sept | Birmingham Snow Hill 16:57 | +12 min | +13 min |
| Tue 29 Sept | Birmingham Snow Hill 16:49 | +4 min | +5 min |
| Mon 28 Sept | Birmingham Snow Hill 16:45 | 0 min | +1 min |
| Fri 25 Sept | Birmingham Snow Hill 16:48 | +3 min | +4 min |
| Thu 24 Sept | Birmingham Snow Hill 16:44 | 0 min | +1 min |
| Wed 23 Sept | Birmingham Snow Hill 16:47 | +2 min | +3 min |
| Tue 22 Sept | Birmingham Snow Hill 17:17 | +32 min | +32 min |
| Mon 21 Sept | Birmingham Snow Hill 17:09 | +24 min | +25 min |
| Fri 18 Sept | Birmingham Snow Hill 16:46 | +1 min | +3 min |
| Thu 17 Sept | Birmingham Snow Hill 16:46 | +1 min | +2 min |
| Wed 16 Sept | Birmingham Snow Hill 16:45 | 0 min | +2 min |
| Tue 15 Sept | Birmingham Snow Hill 16:47 | +2 min | +3 min |
| Mon 14 Sept | Birmingham Snow Hill 17:19 | +33 min | +33 min |
| Fri 11 Sept | Birmingham Snow Hill 16:52 | +6 min | +7 min |
| Thu 10 Sept | Birmingham Snow Hill 16:45 | 0 min | +1 min |
| Wed 9 Sept | Birmingham Snow Hill 16:56 | 0 min | +3 min |
| Tue 8 Sept | Birmingham Snow Hill 16:45 | 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.