Govia Thameslink Railway 871T12
View line Govia Thameslink Railway
Alerts for train 871T12
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Govia Thameslink Railway.
The mini-map returns when the train runs
On-time · 30 days
52%
11/21 runs under 3 min
RT coverage: 21 full · 0 partial · 0 no data
On-time · 90 days
59%
36/61 runs under 3 min
RT coverage: 61 full · 0 partial · 0 no data
Typical delay
+2min
Median at arrival, 90 days
30 days: +2 min
P90
+7min
9 in 10 runs arrive with less than this
30 days: +7 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 23 Sept Max en route +48 min · last fix heading to Gatwick Airport +42 min
- Fri 11 Sept Max en route +18 min · last fix heading to Gatwick Airport +18 min
- Thu 8 Oct Max en route +11 min · last fix heading to Gatwick Airport +10 min
- Fri 21 Aug Max en route +9 min · last fix heading to Gatwick Airport +9 min
- Mon 19 Oct Max en route +8 min · last fix heading to Horley +7 min
Distribution · 90 days
61 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 59% · 36
- 3–10 min 36% · 22
- 10–30 min 3% · 2
- 30+ min 2% · 1
On-time by weekday
- 67% M n=12
- 77% T n=13
- 46% W n=13
- 54% T n=13
- 50% F n=10
- — S n=0
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 5 Nov | Horley 09:09 | +4 min | +5 min |
| Wed 4 Nov | Horley 09:09 | +4 min | +5 min |
| Tue 3 Nov | Horley 09:08 | +2 min | +4 min |
| Mon 2 Nov | Horley 09:09 | +3 min | +4 min |
| Fri 30 Oct | Gatwick Airport 09:15 | +1 min | +2 min |
| Thu 29 Oct | Gatwick Airport 09:16 | +1 min | +3 min |
| Wed 28 Oct | Gatwick Airport 09:14 | 0 min | — |
| Tue 27 Oct | Gatwick Airport 09:17 | +2 min | +3 min |
| Mon 26 Oct | Gatwick Airport 09:15 | +1 min | +2 min |
| Thu 22 Oct | Horley 09:18 | +4 min | +4 min |
| Wed 21 Oct | Gatwick Airport 09:15 | +1 min | +2 min |
| Tue 20 Oct | Gatwick Airport 09:17 | +2 min | +2 min |
| Mon 19 Oct | Horley 09:22 | +7 min | +8 min |
| Fri 16 Oct | Gatwick Airport 09:14 | 0 min | +2 min |
| Thu 15 Oct | Gatwick Airport 09:16 | +2 min | +3 min |
| Wed 14 Oct | Horley 09:17 | +3 min | +4 min |
| Tue 13 Oct | Gatwick Airport 09:16 | +2 min | +2 min |
| Mon 12 Oct | Horley 09:17 | +3 min | +4 min |
| Fri 9 Oct | Horley 09:17 | +3 min | +4 min |
| Thu 8 Oct | Gatwick Airport 09:25 | +10 min | +11 min |
| Wed 7 Oct | Gatwick Airport 09:21 | +7 min | +8 min |
| Tue 6 Oct | Horley 09:18 | +3 min | +4 min |
| Mon 5 Oct | Gatwick Airport 09:14 | 0 min | +1 min |
| Fri 2 Oct | Gatwick Airport 09:14 | 0 min | — |
| Thu 1 Oct | Gatwick Airport 09:14 | 0 min | — |
| Wed 30 Sept | Gatwick Airport 09:18 | +4 min | +5 min |
| Tue 29 Sept | Gatwick Airport 09:15 | 0 min | — |
| Mon 28 Sept | Gatwick Airport 09:14 | 0 min | +1 min |
| Fri 25 Sept | Gatwick Airport 09:14 | −1 min | — |
| Thu 24 Sept | Gatwick Airport 09:14 | 0 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.