London Overground 879S21
View line London Overground
Alerts for train 879S21
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line London Overground.
The mini-map returns when the train runs
On-time · 30 days
60%
3/5 runs under 3 min
RT coverage: 5 full · 0 partial · 0 no data
On-time · 90 days
80%
8/10 runs under 3 min
RT coverage: 10 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +1 min
P90
+3min
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
- Sun 13 Sept Max en route +6 min · last fix heading to Brighton +5 min
- Sun 20 Sept Max en route +3 min · last fix heading to 87660 +3 min
Distribution · 90 days
10 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 80% · 8
- 3–10 min 20% · 2
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- — S n=0
- 80% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 11 Oct | Haggerston 11:28 | +1 min | +1 min |
| Sun 4 Oct | 87660 11:28 | +1 min | +1 min |
| Sun 27 Sept | 87660 11:27 | 0 min | — |
| Sun 20 Sept | 87660 11:29 | +3 min | +3 min |
| Sun 13 Sept | Brighton 12:06 | +5 min | +6 min |
| Sun 30 Aug | 87660 11:27 | 0 min | — |
| Sun 16 Aug | 87660 11:27 | 0 min | +1 min |
| Sun 9 Aug | 87660 11:27 | 0 min | — |
| Sun 2 Aug | 87660 11:27 | 0 min | +1 min |
| Sun 19 Jul | 87660 11:27 | 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.