Elizabeth line 509T81
View line Elizabeth line
Alerts for train 509T81
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Elizabeth line.
✓ Today’s run finished
Today, last fix heading to Heathrow Terminal 5 at 11:45 +3 min
The mini-map returns when the train runs
On-time · 30 days
84%
21/25 runs under 3 min
RT coverage: 25 full · 0 partial · 0 no data
On-time · 90 days
83%
63/76 runs under 3 min
RT coverage: 76 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+6min
9 in 10 runs arrive with less than this
30 days: +8 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
- Fri 7 Aug Max en route +44 min · last fix heading to 73003 +44 min
- Thu 13 Aug Max en route +44 min · last fix heading to 73003 +42 min
- Thu 3 Sept Max en route +12 min · last fix heading to 73775 +12 min
- Thu 8 Oct Max en route +12 min · last fix heading to Stratford (London) +11 min
- Thu 17 Sept Max en route +11 min · last fix heading to Heathrow Terminal 5 +11 min
Distribution · 90 days
76 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 83% · 63
- 3–10 min 8% · 6
- 10–30 min 7% · 5
- 30+ min 3% · 2
On-time by weekday
- 82% M n=11
- 85% T n=13
- 85% W n=13
- 69% T n=13
- 92% F n=13
- — S n=0
- 85% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Heathrow Terminal 5 11:45 | +3 min | +8 min |
| Fri 9 Oct | Heathrow Terminal 5 22:41 | −1 min | +2 min |
| Thu 8 Oct | Stratford (London) 22:23 | +11 min | +12 min |
| Wed 7 Oct | Hayes & Harlington 22:43 | +1 min | +6 min |
| Tue 6 Oct | Heathrow Terminal 5 22:42 | 0 min | +3 min |
| Mon 5 Oct | Heathrow Terminal 5 22:42 | 0 min | +3 min |
| Sun 4 Oct | Heathrow Terminal 5 11:42 | −1 min | +1 min |
| Fri 2 Oct | Heathrow Terminal 5 22:42 | 0 min | +2 min |
| Thu 1 Oct | Heathrow Terminal 5 22:42 | 0 min | +1 min |
| Wed 30 Sept | Heathrow Terminal 5 22:42 | 0 min | +15 min |
| Tue 29 Sept | Heathrow Terminal 5 22:42 | −1 min | +1 min |
| Mon 28 Sept | Heathrow Terminal 5 22:44 | +1 min | +3 min |
| Sun 27 Sept | Heathrow Terminal 5 21:37 | +1 min | +4 min |
| Fri 25 Sept | Heathrow Terminal 5 22:42 | 0 min | +1 min |
| Thu 24 Sept | Heathrow Terminal 5 00:15 | 0 min | +19 min |
| Wed 23 Sept | Heathrow Terminal 5 22:47 | 0 min | +1 min |
| Tue 22 Sept | Heathrow Terminal 5 22:47 | 0 min | +1 min |
| Mon 21 Sept | Heathrow Terminal 5 22:49 | +2 min | +5 min |
| Sun 20 Sept | Heathrow Terminal 5 11:42 | 0 min | — |
| Fri 18 Sept | Heathrow Terminal 5 22:43 | +1 min | +4 min |
| Thu 17 Sept | Heathrow Terminal 5 22:54 | +11 min | +11 min |
| Wed 16 Sept | Heathrow Terminal 5 22:54 | +11 min | +11 min |
| Tue 15 Sept | Heathrow Terminal 5 22:42 | 0 min | +4 min |
| Mon 14 Sept | Heathrow Terminal 5 22:42 | 0 min | +12 min |
| Sun 13 Sept | Heathrow Terminal 5 11:41 | −1 min | +1 min |
| Fri 11 Sept | Heathrow Terminal 5 22:42 | −1 min | +2 min |
| Thu 10 Sept | Heathrow Terminal 5 22:42 | 0 min | +10 min |
| Wed 9 Sept | Heathrow Terminal 5 22:42 | −1 min | +2 min |
| Tue 8 Sept | 73003 22:12 | 0 min | +4 min |
| Mon 7 Sept | Heathrow Terminal 5 22:45 | +3 min | +12 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.