Govia Thameslink Railway 871P39
View line Govia Thameslink Railway
Alerts for train 871P39
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
97%
28/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
85%
76/89 runs under 3 min
RT coverage: 89 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
30 days: −1 min
P90
+3min
9 in 10 runs arrive with less than this
30 days: +1 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 23 Oct Max en route +74 min · last fix heading to Portsmouth Harbour +74 min
- Mon 21 Sept Max en route +41 min · last fix heading to Portsmouth Harbour +41 min
- Sat 12 Sept Max en route +16 min · last fix heading to Portsmouth Harbour +11 min
- Fri 21 Aug Max en route +11 min · last fix heading to Caterham +7 min
- Sun 30 Aug Max en route +4 min · last fix heading to Portsmouth Harbour +4 min
Distribution · 90 days
89 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 4
- On time 81% · 72
- 3–10 min 11% · 10
- 10–30 min 1% · 1
- 30+ min 2% · 2
On-time by weekday
- 92% M n=13
- 100% T n=12
- 92% W n=12
- 85% T n=13
- 77% F n=13
- 85% S n=13
- 69% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 26 Oct | Caterham 15:35 | −1 min | +42 min |
| Sun 25 Oct | Caterham 17:35 | +1 min | +7 min |
| Sat 24 Oct | Whyteleafe 15:35 | −1 min | +15 min |
| Fri 23 Oct | Portsmouth Harbour 16:16 | +74 min | +74 min |
| Thu 22 Oct | Caterham 15:35 | 0 min | +3 min |
| Wed 21 Oct | Caterham 15:35 | 0 min | +3 min |
| Tue 20 Oct | Caterham 15:37 | +1 min | +6 min |
| Mon 19 Oct | Caterham 15:34 | −1 min | +2 min |
| Sun 18 Oct | Surbiton 14:05 | 0 min | +1 min |
| Sat 17 Oct | Caterham 15:33 | −3 min | +4 min |
| Fri 16 Oct | Caterham 15:35 | −1 min | +8 min |
| Thu 15 Oct | Caterham 15:34 | −1 min | +5 min |
| Wed 14 Oct | Caterham 15:35 | 0 min | +2 min |
| Tue 13 Oct | Caterham 15:35 | −1 min | +2 min |
| Mon 12 Oct | Caterham 15:35 | −1 min | +9 min |
| Sun 11 Oct | Caterham 17:33 | −1 min | +9 min |
| Sat 10 Oct | Caterham 15:36 | 0 min | +12 min |
| Fri 9 Oct | Caterham 15:35 | 0 min | +3 min |
| Thu 8 Oct | Whyteleafe 15:34 | −2 min | +9 min |
| Wed 7 Oct | Caterham 15:35 | −1 min | +5 min |
| Tue 6 Oct | Caterham 15:37 | +1 min | +5 min |
| Mon 5 Oct | Caterham 15:23 | −1 min | +4 min |
| Sun 4 Oct | Caterham 17:34 | 0 min | +4 min |
| Sat 3 Oct | Caterham 15:35 | −1 min | +1 min |
| Fri 2 Oct | Caterham 15:35 | −1 min | +4 min |
| Thu 1 Oct | Caterham 15:35 | 0 min | +8 min |
| Wed 30 Sept | Caterham 15:35 | −1 min | +2 min |
| Tue 29 Sept | Caterham 15:36 | 0 min | +4 min |
| Mon 28 Sept | Caterham 15:35 | −1 min | +4 min |
| Sun 27 Sept | Portsmouth Harbour 15:16 | +3 min | +3 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.