Heathrow Express 731Y31
View line Heathrow Express
Alerts for train 731Y31
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
79%
22/28 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: +1 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +4 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 7 Sept Max en route +20 min ยท last fix heading to 73251 +20 min
- Thu 10 Sept Max en route +18 min ยท last fix heading to 73251 +18 min
- Tue 29 Sept Max en route +16 min ยท last fix heading to 73251 +16 min
- Fri 25 Sept Max en route +16 min ยท last fix heading to 73251 +16 min
- Wed 16 Sept Max en route +13 min ยท last fix heading to 73251 +13 min
Distribution ยท 90 days
81 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% ยท 7
- On time 72% ยท 58
- 3โ10 min 11% ยท 9
- 10โ30 min 9% ยท 7
- 30+ min 0% ยท 0
On-time by weekday
- 91% M n=11
- 83% T n=12
- 82% W n=11
- 58% T n=12
- 75% F n=12
- 100% S n=12
- 73% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 18 Oct | โ 08:01 | +3 min | +3 min |
| Sat 17 Oct | โ 07:54 | โ1 min | โ |
| Fri 16 Oct | โ 07:54 | โ2 min | โ |
| Wed 14 Oct | Heathrow Terminals 2 & 3 07:55 | 0 min | โ |
| Tue 13 Oct | โ 07:56 | +1 min | +1 min |
| Mon 12 Oct | โ 07:55 | 0 min | โ |
| Sun 11 Oct | Heathrow Terminals 2 & 3 08:01 | +4 min | +6 min |
| Sat 10 Oct | โ 07:56 | +1 min | +1 min |
| Fri 9 Oct | โ 07:55 | 0 min | โ |
| Thu 8 Oct | Heathrow Terminals 2 & 3 07:56 | +1 min | +1 min |
| Tue 6 Oct | โ 07:55 | 0 min | +1 min |
| Mon 5 Oct | 73251 07:56 | +1 min | +1 min |
| Sun 4 Oct | 73251 08:00 | +2 min | +3 min |
| Sat 3 Oct | 73251 07:54 | โ1 min | โ |
| Fri 2 Oct | 73251 07:56 | 0 min | โ |
| Thu 1 Oct | 73251 07:59 | +4 min | +4 min |
| Wed 30 Sept | 73251 07:54 | โ1 min | โ |
| Tue 29 Sept | 73251 08:11 | +16 min | +16 min |
| Mon 28 Sept | 73251 07:56 | +1 min | +1 min |
| Sun 27 Sept | 73251 07:59 | +2 min | +2 min |
| Sat 26 Sept | 73251 07:54 | โ2 min | โ |
| Fri 25 Sept | 73251 08:11 | +16 min | +16 min |
| Thu 24 Sept | 73251 07:54 | โ2 min | โ |
| Wed 23 Sept | 73251 07:53 | โ2 min | โ |
| Tue 22 Sept | 73251 07:55 | 0 min | โ |
| Mon 21 Sept | 73251 07:56 | +1 min | +1 min |
| Sun 20 Sept | 73251 08:02 | +4 min | +4 min |
| Sat 19 Sept | 73251 07:55 | 0 min | โ |
| Fri 18 Sept | 73251 08:00 | +5 min | +6 min |
| Thu 17 Sept | 73251 07:57 | +1 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.