Heathrow Express 731Y44
View line Heathrow Express
Alerts for train 731Y44
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
77%
23/30 runs under 3 min
RT coverage: 30 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
75%
64/85 runs under 3 min
RT coverage: 85 full ยท 0 partial ยท 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +1 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +5 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
- Mon 12 Oct Max en route +39 min ยท last fix heading to Heathrow Terminals 2 & 3 +39 min
- Wed 16 Sept Max en route +24 min ยท last fix heading to 73251 +24 min
- Tue 20 Oct Max en route +19 min ยท last fix heading to โ +19 min
- Thu 1 Oct Max en route +13 min ยท last fix heading to 73251 +13 min
- Sat 26 Sept Max en route +11 min ยท last fix heading to 73251 +11 min
Distribution ยท 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 14% ยท 12
- On time 61% ยท 52
- 3โ10 min 19% ยท 16
- 10โ30 min 5% ยท 4
- 30+ min 1% ยท 1
On-time by weekday
- 83% M n=12
- 92% T n=12
- 67% W n=12
- 58% T n=12
- 85% F n=13
- 54% S n=13
- 91% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | โ 11:03 | +1 min | +1 min |
| Fri 6 Nov | Heathrow Terminals 2 & 3 11:04 | +2 min | +2 min |
| Thu 5 Nov | โ 11:04 | +3 min | +3 min |
| Wed 4 Nov | Heathrow Terminals 2 & 3 11:03 | +1 min | +1 min |
| Tue 3 Nov | โ 10:59 | โ1 min | โ |
| Mon 2 Nov | Heathrow Terminals 2 & 3 11:04 | +2 min | +2 min |
| Sun 1 Nov | โ 11:11 | โ1 min | โ |
| Sat 31 Oct | โ 11:10 | 0 min | โ |
| Fri 30 Oct | โ 11:09 | โ1 min | โ |
| Thu 29 Oct | โ 11:14 | +4 min | +4 min |
| Wed 28 Oct | Heathrow Terminals 2 & 3 11:11 | 0 min | +1 min |
| Tue 27 Oct | Heathrow Terminals 2 & 3 11:10 | 0 min | โ |
| Mon 26 Oct | โ 11:11 | +1 min | +1 min |
| Sun 25 Oct | Heathrow Terminals 2 & 3 11:09 | โ3 min | โ |
| Sat 24 Oct | โ 11:15 | +5 min | +5 min |
| Fri 23 Oct | โ 11:09 | โ1 min | โ |
| Thu 22 Oct | Heathrow Terminals 2 & 3 11:09 | โ1 min | โ |
| Wed 21 Oct | โ 11:11 | +1 min | +1 min |
| Tue 20 Oct | โ 11:29 | +19 min | +19 min |
| Mon 19 Oct | โ 11:11 | +1 min | +1 min |
| Sun 18 Oct | Heathrow Terminals 2 & 3 11:19 | +7 min | +7 min |
| Sat 17 Oct | โ 11:11 | +1 min | +1 min |
| Fri 16 Oct | Heathrow Terminals 2 & 3 11:10 | โ1 min | โ |
| Thu 15 Oct | โ 11:11 | +1 min | +1 min |
| Wed 14 Oct | โ 11:09 | โ2 min | โ |
| Tue 13 Oct | โ 11:09 | โ1 min | โ |
| Mon 12 Oct | Heathrow Terminals 2 & 3 11:49 | +39 min | +39 min |
| Sun 11 Oct | Heathrow Terminals 2 & 3 11:09 | โ2 min | โ |
| Sat 10 Oct | โ 11:13 | +3 min | +3 min |
| Fri 9 Oct | โ 11:10 | 0 min | โ |
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.