Heathrow Express 731Y39
View line Heathrow Express
Alerts for train 731Y39
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
80%
24/30 runs under 3 min
RT coverage: 30 full · 0 partial · 0 no data
On-time · 90 days
76%
62/82 runs under 3 min
RT coverage: 82 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+6min
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)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Tue 8 Sept Max en route +13 min · last fix heading to 73251 +13 min
- Wed 7 Oct Max en route +10 min · last fix heading to Heathrow Terminals 2 & 3 +10 min
- Sun 27 Sept Max en route +10 min · last fix heading to 73251 +10 min
- Fri 18 Sept Max en route +11 min · last fix heading to 73251 +10 min
- Wed 9 Sept Max en route +9 min · last fix heading to 73251 +9 min
Distribution · 90 days
82 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% · 7
- On time 67% · 55
- 3–10 min 20% · 16
- 10–30 min 5% · 4
- 30+ min 0% · 0
On-time by weekday
- 58% M n=12
- 73% T n=11
- 64% W n=11
- 69% T n=13
- 83% F n=12
- 92% S n=12
- 91% S n=11
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 19 Oct | — 09:59 | +4 min | +5 min |
| Sun 18 Oct | Heathrow Terminals 2 & 3 09:59 | +1 min | +1 min |
| Sat 17 Oct | — 09:54 | −1 min | — |
| Fri 16 Oct | Heathrow Terminals 2 & 3 09:56 | +1 min | +1 min |
| Thu 15 Oct | Heathrow Terminals 2 & 3 09:55 | 0 min | — |
| Wed 14 Oct | — 09:54 | −1 min | — |
| Tue 13 Oct | — 09:55 | 0 min | — |
| Mon 12 Oct | — 09:55 | 0 min | — |
| Sun 11 Oct | — 09:59 | +2 min | +4 min |
| Sat 10 Oct | — 09:56 | 0 min | — |
| Fri 9 Oct | — 09:59 | +4 min | +4 min |
| Thu 8 Oct | Heathrow Terminals 2 & 3 10:00 | +4 min | +4 min |
| Wed 7 Oct | Heathrow Terminals 2 & 3 10:06 | +10 min | +10 min |
| Tue 6 Oct | — 09:56 | +1 min | +1 min |
| Mon 5 Oct | 73251 09:56 | +1 min | +1 min |
| Sun 4 Oct | 73251 09:55 | −2 min | — |
| Sat 3 Oct | 73251 09:54 | −1 min | — |
| Fri 2 Oct | 73251 09:56 | +1 min | +1 min |
| Thu 1 Oct | 73251 09:56 | +1 min | +1 min |
| Wed 30 Sept | 73251 09:55 | 0 min | — |
| Tue 29 Sept | 73251 09:56 | +1 min | +1 min |
| Mon 28 Sept | 73251 09:59 | +4 min | +4 min |
| Sun 27 Sept | 73251 10:06 | +10 min | +10 min |
| Sat 26 Sept | 73251 09:56 | +1 min | +1 min |
| Fri 25 Sept | 73251 09:56 | +1 min | +1 min |
| Thu 24 Sept | 73251 09:57 | +2 min | +2 min |
| Wed 23 Sept | 73251 09:58 | +2 min | +2 min |
| Tue 22 Sept | 73251 09:56 | +1 min | +1 min |
| Mon 21 Sept | 73251 09:58 | +2 min | +3 min |
| Sun 20 Sept | 73251 09:55 | −2 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.