Heathrow Express 731Y37
View line Heathrow Express
Alerts for train 731Y37
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
83%
24/29 runs under 3 min
RT coverage: 29 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
78%
64/82 runs under 3 min
RT coverage: 82 full ยท 0 partial ยท 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: +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
- Wed 16 Sept Max en route +27 min ยท last fix heading to 73251 +27 min
- Tue 8 Sept Max en route +19 min ยท last fix heading to 73251 +19 min
- Wed 19 Aug Max en route +19 min ยท last fix heading to 73251 +19 min
- Mon 7 Sept Max en route +16 min ยท last fix heading to 73251 +16 min
- Thu 10 Sept Max en route +14 min ยท last fix heading to 73251 +14 min
Distribution ยท 90 days
82 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 15% ยท 12
- On time 63% ยท 52
- 3โ10 min 12% ยท 10
- 10โ30 min 10% ยท 8
- 30+ min 0% ยท 0
On-time by weekday
- 83% M n=12
- 67% T n=12
- 58% W n=12
- 77% T n=13
- 82% F n=11
- 82% S n=11
- 100% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 16 Oct | โ 09:29 | +3 min | +3 min |
| Thu 15 Oct | โ 09:24 | โ2 min | โ |
| Wed 14 Oct | โ 09:27 | +2 min | +2 min |
| Tue 13 Oct | โ 09:26 | +1 min | +1 min |
| Mon 12 Oct | โ 09:26 | +1 min | +1 min |
| Sun 11 Oct | Heathrow Terminals 2 & 3 09:25 | โ1 min | โ |
| Sat 10 Oct | โ 09:23 | โ2 min | โ |
| Fri 9 Oct | โ 09:24 | โ1 min | โ |
| Thu 8 Oct | โ 09:27 | +2 min | +2 min |
| Wed 7 Oct | โ 09:27 | +1 min | +1 min |
| Tue 6 Oct | Heathrow Terminals 2 & 3 09:27 | +2 min | +3 min |
| Mon 5 Oct | 73251 09:24 | โ1 min | โ |
| Sun 4 Oct | 73251 09:24 | โ2 min | โ |
| Sat 3 Oct | 73251 09:24 | โ1 min | โ |
| Fri 2 Oct | 73251 09:24 | โ1 min | โ |
| Thu 1 Oct | 73251 09:25 | โ1 min | โ |
| Wed 30 Sept | 73251 09:27 | +3 min | +3 min |
| Tue 29 Sept | 73251 09:27 | +2 min | +2 min |
| Mon 28 Sept | 73251 09:38 | +13 min | +13 min |
| Sun 27 Sept | 73251 09:27 | 0 min | +1 min |
| Sat 26 Sept | 73251 09:28 | +3 min | +3 min |
| Fri 25 Sept | 73251 09:38 | +13 min | +13 min |
| Thu 24 Sept | 73251 09:26 | 0 min | โ |
| Wed 23 Sept | 73251 09:24 | โ2 min | โ |
| Tue 22 Sept | 73251 09:24 | โ1 min | โ |
| Mon 21 Sept | 73251 09:25 | โ1 min | โ |
| Sun 20 Sept | 73251 09:25 | โ1 min | โ |
| Sat 19 Sept | 73251 09:25 | 0 min | +1 min |
| Thu 17 Sept | 73251 09:24 | โ1 min | โ |
| Wed 16 Sept | 73251 09:52 | +27 min | +27 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.