Heathrow Express 731Y91
View line Heathrow Express
Alerts for train 731Y91
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Heathrow Express.
The mini-map returns when the train runs
On-time ยท 30 days
93%
26/28 runs under 3 min
RT coverage: 28 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
80%
65/81 runs under 3 min
RT coverage: 81 full ยท 0 partial ยท 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: โ1 min
P90
+6min
9 in 10 runs arrive with less than this
30 days: +1 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
- Wed 26 Aug Max en route +13 min ยท last fix heading to 73251 +13 min
- Mon 7 Sept Max en route +10 min ยท last fix heading to 73251 +10 min
- Tue 22 Sept Max en route +9 min ยท last fix heading to 73251 +9 min
- Thu 10 Sept Max en route +8 min ยท last fix heading to 73251 +8 min
- Wed 9 Sept Max en route +7 min ยท last fix heading to 73251 +7 min
Distribution ยท 90 days
81 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 36% ยท 29
- On time 44% ยท 36
- 3โ10 min 17% ยท 14
- 10โ30 min 2% ยท 2
- 30+ min 0% ยท 0
On-time by weekday
- 75% M n=12
- 54% T n=13
- 77% W n=13
- 83% T n=12
- 91% F n=11
- 100% S n=10
- 90% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 23 Oct | Heathrow Terminals 2 & 3 22:59 | +3 min | +3 min |
| Thu 22 Oct | โ 22:55 | โ1 min | โ |
| Wed 21 Oct | Heathrow Terminals 2 & 3 22:54 | โ3 min | +1 min |
| Tue 20 Oct | โ 22:55 | โ1 min | โ |
| Mon 19 Oct | Heathrow Terminals 2 & 3 22:56 | 0 min | โ |
| Sat 17 Oct | Heathrow Terminals 2 & 3 22:55 | 0 min | โ |
| Fri 16 Oct | โ 22:56 | 0 min | โ |
| Thu 15 Oct | โ 22:56 | 0 min | +1 min |
| Wed 14 Oct | โ 22:57 | +1 min | +1 min |
| Tue 13 Oct | Heathrow Terminals 2 & 3 22:56 | 0 min | โ |
| Mon 12 Oct | โ 22:55 | โ2 min | โ |
| Sun 11 Oct | โ 22:55 | โ2 min | โ |
| Sat 10 Oct | โ 22:54 | โ2 min | โ |
| Fri 9 Oct | โ 22:54 | โ2 min | โ |
| Thu 8 Oct | Heathrow Terminals 2 & 3 22:54 | โ2 min | โ |
| Wed 7 Oct | โ 22:55 | โ1 min | โ |
| Tue 6 Oct | Heathrow Terminals 2 & 3 22:55 | โ2 min | โ |
| Mon 5 Oct | Heathrow Terminals 2 & 3 22:55 | โ1 min | โ |
| Sun 4 Oct | 73251 22:54 | โ2 min | โ |
| Sat 3 Oct | 73251 22:53 | โ2 min | โ |
| Fri 2 Oct | 73251 22:53 | โ3 min | โ |
| Thu 1 Oct | 73251 22:54 | โ2 min | โ |
| Wed 30 Sept | 73251 22:54 | โ2 min | โ |
| Tue 29 Sept | 73251 22:54 | โ2 min | โ |
| Mon 28 Sept | 73251 22:57 | 0 min | +1 min |
| Sun 27 Sept | 73251 23:00 | +4 min | +5 min |
| Sat 26 Sept | 73251 22:58 | +2 min | +2 min |
| Fri 25 Sept | 73251 22:56 | 0 min | โ |
| Thu 24 Sept | 73251 23:01 | +4 min | +4 min |
| Wed 23 Sept | 73251 22:59 | +3 min | +3 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.