Chiltern Railways 741Y21
View line Chiltern Railways
Alerts for train 741Y21
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.
It does not run today
Last recorded run: Sunday 11 October โ2 min
The mini-map returns when the train runs
On-time ยท 30 days
88%
7/8 runs under 3 min
RT coverage: 8 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
91%
21/23 runs under 3 min
RT coverage: 23 full ยท 0 partial ยท 0 no data
Typical delay
โ1min
Median at arrival, 90 days
30 days: 0 min
P90
+1min
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)
- 3โ10 min
- 10โ30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Sun 2 Aug Max en route +17 min ยท last fix heading to 63018 +13 min
- Sat 10 Oct Max en route +8 min ยท last fix heading to Wembley Stadium +7 min
Distribution ยท 90 days
23 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 30% ยท 7
- On time 61% ยท 14
- 3โ10 min 4% ยท 1
- 10โ30 min 4% ยท 1
- 30+ min 0% ยท 0
On-time by weekday
- โ M n=0
- โ T n=0
- โ W n=0
- โ T n=0
- โ F n=0
- 91% S n=11
- 92% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Wembley Stadium 09:43 | โ2 min | โ |
| Sat 10 Oct | Wembley Stadium 09:55 | +7 min | +8 min |
| Sun 4 Oct | 63018 09:44 | โ1 min | +3 min |
| Sat 3 Oct | 63018 09:47 | โ1 min | +1 min |
| Sun 27 Sept | 63018 09:45 | 0 min | +2 min |
| Sat 26 Sept | 63018 09:48 | โ1 min | +1 min |
| Sun 20 Sept | 63018 09:45 | +1 min | +2 min |
| Sat 19 Sept | 63018 09:48 | 0 min | +1 min |
| Sun 6 Sept | West Ruislip 09:27 | โ1 min | +2 min |
| Sat 5 Sept | 63018 09:48 | โ1 min | +1 min |
| Sun 30 Aug | 63018 09:44 | โ2 min | +1 min |
| Sat 29 Aug | 63018 09:47 | โ1 min | +1 min |
| Sun 23 Aug | 63018 09:43 | โ2 min | +1 min |
| Sat 22 Aug | 63018 09:46 | โ2 min | +2 min |
| Sun 16 Aug | Wembley Stadium 09:47 | 0 min | โ |
| Sat 15 Aug | 63018 09:48 | 0 min | +1 min |
| Sun 9 Aug | 63018 09:45 | โ1 min | +1 min |
| Sat 8 Aug | 63018 09:48 | 0 min | +1 min |
| Sun 2 Aug | 63018 09:59 | +13 min | +17 min |
| Sat 1 Aug | 63018 09:46 | โ2 min | +1 min |
| Sun 26 Jul | 63018 09:44 | โ2 min | +1 min |
| Sat 25 Jul | 63018 09:48 | 0 min | +2 min |
| Sun 19 Jul | 63018 09:43 | โ2 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.