Heathrow Express 731Y23
View line Heathrow Express
Alerts for train 731Y23
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
96%
27/28 runs under 3 min
RT coverage: 28 full ยท 0 partial ยท 0 no data
On-time ยท 90 days
86%
70/81 runs under 3 min
RT coverage: 81 full ยท 0 partial ยท 0 no data
Typical delay
โ1min
Median at arrival, 90 days
30 days: โ1 min
P90
+3min
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
- Sat 1 Aug Max en route +48 min ยท last fix heading to 73251 +48 min
- Sun 20 Sept Max en route +12 min ยท last fix heading to 73251 +12 min
- Wed 12 Aug Max en route +13 min ยท last fix heading to 73251 +12 min
- Thu 27 Aug Max en route +9 min ยท last fix heading to 73251 +9 min
- Tue 8 Sept Max en route +6 min ยท last fix heading to 73251 +6 min
Distribution ยท 90 days
81 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 32% ยท 26
- On time 54% ยท 44
- 3โ10 min 10% ยท 8
- 10โ30 min 2% ยท 2
- 30+ min 1% ยท 1
On-time by weekday
- 92% M n=12
- 83% T n=12
- 85% W n=13
- 82% T n=11
- 100% F n=11
- 83% S n=12
- 80% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | โ 05:56 | โ1 min | โ |
| Tue 20 Oct | โ 05:54 | โ2 min | โ |
| Mon 19 Oct | Heathrow Terminals 2 & 3 05:56 | 0 min | โ |
| Sun 18 Oct | โ 05:55 | โ1 min | โ |
| Sat 17 Oct | โ 05:58 | +2 min | +2 min |
| Fri 16 Oct | โ 05:54 | โ2 min | โ |
| Thu 15 Oct | โ 05:54 | โ2 min | โ |
| Wed 14 Oct | โ 05:55 | โ1 min | โ |
| Tue 13 Oct | โ 05:54 | โ2 min | โ |
| Mon 12 Oct | โ 05:54 | โ2 min | โ |
| Sat 10 Oct | Heathrow Terminals 2 & 3 05:56 | 0 min | โ |
| Fri 9 Oct | โ 05:55 | โ1 min | โ |
| Thu 8 Oct | Heathrow Terminals 2 & 3 05:59 | +3 min | +3 min |
| Wed 7 Oct | โ 05:55 | โ1 min | โ |
| Tue 6 Oct | โ 05:57 | +1 min | +1 min |
| Mon 5 Oct | 73251 05:56 | 0 min | โ |
| Sun 4 Oct | 73251 05:58 | +2 min | +2 min |
| Sat 3 Oct | 73251 05:56 | 0 min | +1 min |
| Fri 2 Oct | 73251 05:55 | โ2 min | โ |
| Thu 1 Oct | 73251 05:54 | โ2 min | โ |
| Wed 30 Sept | 73251 05:55 | โ1 min | โ |
| Tue 29 Sept | 73251 05:54 | โ3 min | โ |
| Mon 28 Sept | 73251 05:55 | โ1 min | โ |
| Sun 27 Sept | 73251 05:56 | 0 min | โ |
| Sat 26 Sept | 73251 05:56 | 0 min | +1 min |
| Fri 25 Sept | 73251 05:54 | โ3 min | โ |
| Thu 24 Sept | 73251 05:55 | โ1 min | โ |
| Wed 23 Sept | 73251 05:54 | โ2 min | โ |
| Tue 22 Sept | 73251 05:54 | โ2 min | โ |
| Mon 21 Sept | 73251 05:53 | โ3 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.