Heathrow Express 731Y40
View line Heathrow Express
Alerts for train 731Y40
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 · 30 days
55%
16/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
65%
55/85 runs under 3 min
RT coverage: 85 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +2 min
P90
+6min
9 in 10 runs arrive with less than this
30 days: +6 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Wed 16 Sept Max en route +32 min · last fix heading to 73251 +32 min
- Tue 20 Oct Max en route +22 min · last fix heading to Heathrow Terminals 2 & 3 +22 min
- Tue 11 Aug Max en route +12 min · last fix heading to 73251 +11 min
- Wed 7 Oct Max en route +9 min · last fix heading to Heathrow Terminals 2 & 3 +9 min
- Sat 12 Sept Max en route +8 min · last fix heading to 73251 +8 min
Distribution · 90 days
85 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 6% · 5
- On time 59% · 50
- 3–10 min 32% · 27
- 10–30 min 2% · 2
- 30+ min 1% · 1
On-time by weekday
- 83% M n=12
- 50% T n=12
- 75% W n=12
- 45% T n=11
- 67% F n=12
- 62% S n=13
- 69% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 21 Oct | — 10:09 | −1 min | — |
| Tue 20 Oct | Heathrow Terminals 2 & 3 10:32 | +22 min | +22 min |
| Mon 19 Oct | Heathrow Terminals 2 & 3 10:14 | +4 min | +4 min |
| Sun 18 Oct | Heathrow Terminals 2 & 3 10:15 | +3 min | +5 min |
| Sat 17 Oct | Heathrow Terminals 2 & 3 10:12 | +2 min | +2 min |
| Fri 16 Oct | Heathrow Terminals 2 & 3 10:10 | 0 min | — |
| Thu 15 Oct | — 10:14 | +4 min | +4 min |
| Wed 14 Oct | — 10:09 | −1 min | — |
| Tue 13 Oct | — 10:11 | 0 min | — |
| Mon 12 Oct | — 10:11 | +1 min | +2 min |
| Sun 11 Oct | Heathrow Terminals 2 & 3 10:10 | −2 min | — |
| Sat 10 Oct | Heathrow Terminals 2 & 3 10:15 | +5 min | +5 min |
| Fri 9 Oct | — 10:13 | +3 min | +3 min |
| Thu 8 Oct | Heathrow Terminals 2 & 3 10:13 | +3 min | +3 min |
| Wed 7 Oct | Heathrow Terminals 2 & 3 10:19 | +9 min | +9 min |
| Tue 6 Oct | — 10:16 | +6 min | +6 min |
| Mon 5 Oct | 73251 10:10 | 0 min | +1 min |
| Sun 4 Oct | 73251 10:11 | 0 min | +1 min |
| Sat 3 Oct | 73251 10:12 | +2 min | +3 min |
| Fri 2 Oct | 73251 10:11 | +1 min | +2 min |
| Thu 1 Oct | 73251 10:10 | 0 min | — |
| Wed 30 Sept | 73251 10:14 | +4 min | +4 min |
| Tue 29 Sept | 73251 10:10 | 0 min | — |
| Mon 28 Sept | 73251 10:16 | +6 min | +6 min |
| Sun 27 Sept | 73251 10:17 | +5 min | +7 min |
| Sat 26 Sept | 73251 10:13 | +2 min | +2 min |
| Fri 25 Sept | 73251 10:12 | +1 min | +1 min |
| Thu 24 Sept | 73251 10:16 | +5 min | +5 min |
| Wed 23 Sept | 73251 10:10 | −1 min | +1 min |
| Tue 22 Sept | 73251 10:10 | 0 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.