London Overground 879H27
View line London Overground
Alerts for train 879H27
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
69%
20/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
77%
60/78 runs under 3 min
RT coverage: 78 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +2 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +3 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 +8 min · last fix heading to Dalston Junction +7 min
- Thu 20 Aug Max en route +8 min · last fix heading to Dalston Junction +6 min
- Wed 2 Sept Max en route +5 min · last fix heading to Dalston Junction +5 min
- Fri 28 Aug Max en route +7 min · last fix heading to Dalston Junction +5 min
- Tue 6 Oct Max en route +6 min · last fix heading to Dalston Junction +4 min
Distribution · 90 days
78 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 77% · 60
- 3–10 min 23% · 18
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 82% M n=11
- 75% T n=12
- 73% W n=11
- 75% T n=12
- 83% F n=12
- 70% S n=10
- 80% S n=10
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Thu 15 Oct | Haggerston 12:52 | +2 min | +3 min |
| Wed 14 Oct | Dalston Junction 12:50 | −1 min | +2 min |
| Tue 13 Oct | Haggerston 12:51 | 0 min | +2 min |
| Mon 12 Oct | Dalston Junction 12:55 | +3 min | +4 min |
| Sun 11 Oct | Dalston Junction 12:54 | +2 min | +2 min |
| Sat 10 Oct | Haggerston 12:53 | +3 min | +3 min |
| Fri 9 Oct | Haggerston 12:53 | +2 min | +3 min |
| Thu 8 Oct | Haggerston 12:53 | +3 min | +3 min |
| Wed 7 Oct | Dalston Junction 12:50 | −1 min | +3 min |
| Tue 6 Oct | Dalston Junction 12:54 | +4 min | +6 min |
| Mon 5 Oct | Shoreditch High Street 12:46 | +1 min | +3 min |
| Sat 3 Oct | Dalston Junction 12:53 | +2 min | +3 min |
| Fri 2 Oct | Dalston Junction 12:50 | −1 min | +1 min |
| Thu 1 Oct | Dalston Junction 12:51 | 0 min | +3 min |
| Wed 30 Sept | Dalston Junction 12:51 | 0 min | +1 min |
| Tue 29 Sept | Dalston Junction 12:54 | +3 min | +4 min |
| Mon 28 Sept | Dalston Junction 12:53 | +2 min | +5 min |
| Sun 27 Sept | Dalston Junction 12:55 | +3 min | +4 min |
| Sat 26 Sept | Dalston Junction 12:51 | 0 min | +2 min |
| Fri 25 Sept | Dalston Junction 12:51 | 0 min | +5 min |
| Thu 24 Sept | Dalston Junction 12:51 | 0 min | +2 min |
| Wed 23 Sept | Dalston Junction 12:58 | +7 min | +8 min |
| Tue 22 Sept | Dalston Junction 12:53 | +3 min | +4 min |
| Mon 21 Sept | Dalston Junction 12:51 | 0 min | +1 min |
| Sun 20 Sept | Dalston Junction 12:54 | +2 min | +2 min |
| Sat 19 Sept | Dalston Junction 12:51 | 0 min | +3 min |
| Fri 18 Sept | Dalston Junction 12:52 | +1 min | +2 min |
| Thu 17 Sept | Dalston Junction 12:55 | +4 min | +4 min |
| Wed 16 Sept | Dalston Junction 12:52 | +1 min | +6 min |
| Tue 15 Sept | Dalston Junction 12:51 | 0 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.