Govia Thameslink Railway 871E21
View line Govia Thameslink Railway
Alerts for train 871E21
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
15%
4/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
16%
11/69 runs under 3 min
RT coverage: 69 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +7 min
P90
+22min
9 in 10 runs arrive with less than this
30 days: +20 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 +70 min · last fix heading to Edenbridge Town +70 min
- Thu 17 Sept Max en route +47 min · last fix heading to Hurst Green +47 min
- Mon 17 Aug Max en route +40 min · last fix heading to 87767 +40 min
- Wed 12 Aug Max en route +34 min · last fix heading to 87767 +34 min
- Fri 16 Oct Max en route +24 min · last fix heading to Crowborough +24 min
Distribution · 90 days
69 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 16% · 11
- 3–10 min 57% · 39
- 10–30 min 22% · 15
- 30+ min 6% · 4
On-time by weekday
- 10% M n=10
- 0% T n=12
- 9% W n=11
- 33% T n=12
- 25% F n=12
- 17% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 31 Oct | Uckfield 12:29 | +1 min | +3 min |
| Fri 30 Oct | Uckfield 12:35 | +7 min | +7 min |
| Thu 29 Oct | Uckfield 12:30 | +2 min | +4 min |
| Wed 28 Oct | Uckfield 12:39 | +11 min | +12 min |
| Tue 27 Oct | Uckfield 12:37 | +9 min | +9 min |
| Mon 26 Oct | Crowborough 12:48 | +20 min | +22 min |
| Sat 24 Oct | Uckfield 12:37 | +9 min | +9 min |
| Fri 23 Oct | Uckfield 12:31 | +3 min | +4 min |
| Thu 22 Oct | Crowborough 12:28 | 0 min | +2 min |
| Wed 21 Oct | Uckfield 12:36 | +8 min | +8 min |
| Tue 20 Oct | Uckfield 12:35 | +7 min | +10 min |
| Mon 19 Oct | Crowborough 12:33 | +5 min | +6 min |
| Sat 17 Oct | Uckfield 12:32 | +4 min | +5 min |
| Fri 16 Oct | Crowborough 12:41 | +24 min | +24 min |
| Thu 15 Oct | Uckfield 12:29 | +1 min | +2 min |
| Wed 14 Oct | Uckfield 12:36 | +8 min | +8 min |
| Tue 13 Oct | Crowborough 12:34 | +6 min | +9 min |
| Mon 12 Oct | Uckfield 12:31 | +3 min | +4 min |
| Sat 10 Oct | Crowborough 12:48 | +20 min | +21 min |
| Fri 9 Oct | Uckfield 12:34 | +6 min | +6 min |
| Thu 8 Oct | Uckfield 12:50 | +22 min | +23 min |
| Wed 7 Oct | Uckfield 12:32 | +3 min | +4 min |
| Tue 6 Oct | Uckfield 12:41 | +13 min | +18 min |
| Mon 5 Oct | Uckfield 12:35 | +7 min | +7 min |
| Sat 3 Oct | Uckfield 12:33 | +5 min | +6 min |
| Fri 2 Oct | Uckfield 12:37 | +9 min | +9 min |
| Thu 1 Oct | Uckfield 12:33 | +5 min | +5 min |
| Wed 30 Sept | Uckfield 12:33 | +5 min | +5 min |
| Tue 29 Sept | Uckfield 12:32 | +4 min | +4 min |
| Mon 28 Sept | Uckfield 12:35 | +8 min | +9 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.