Govia Thameslink Railway 879Y31
View line Govia Thameslink Railway
Alerts for train 879Y31
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
83%
24/29 runs under 3 min
RT coverage: 29 full · 0 partial · 0 no data
On-time · 90 days
86%
76/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+3min
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
- Fri 7 Aug Max en route +9 min · last fix heading to Sevenoaks +9 min
- Fri 16 Oct Max en route +12 min · last fix heading to Sevenoaks +8 min
- Fri 31 Jul Max en route +9 min · last fix heading to Sevenoaks +8 min
- Mon 19 Oct Max en route +6 min · last fix heading to Otford +5 min
- Mon 28 Sept Max en route +5 min · last fix heading to Sevenoaks +4 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 85% · 75
- 3–10 min 14% · 12
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 69% M n=13
- 77% T n=13
- 100% W n=12
- 100% T n=12
- 69% F n=13
- 100% S n=13
- 92% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 20 Oct | Otford 14:04 | 0 min | — |
| Mon 19 Oct | Otford 14:08 | +5 min | +6 min |
| Sun 18 Oct | Sevenoaks 14:00 | +3 min | +3 min |
| Sat 17 Oct | Sevenoaks 14:03 | 0 min | — |
| Fri 16 Oct | Sevenoaks 14:11 | +8 min | +12 min |
| Thu 15 Oct | Otford 14:04 | +1 min | +1 min |
| Wed 14 Oct | Otford 14:03 | 0 min | +1 min |
| Tue 13 Oct | Otford 14:03 | 0 min | +1 min |
| Mon 12 Oct | Sevenoaks 14:06 | +3 min | +4 min |
| Sun 11 Oct | Shoreham (Kent) 13:59 | +2 min | +2 min |
| Sat 10 Oct | Sevenoaks 14:03 | 0 min | — |
| Fri 9 Oct | Otford 14:03 | 0 min | +1 min |
| Thu 8 Oct | Otford 14:03 | 0 min | — |
| Wed 7 Oct | Otford 14:04 | 0 min | +1 min |
| Tue 6 Oct | Sevenoaks 14:03 | 0 min | — |
| Mon 5 Oct | Sevenoaks 14:05 | +2 min | +2 min |
| Sun 4 Oct | Sevenoaks 13:58 | +2 min | +2 min |
| Sat 3 Oct | Sevenoaks 14:04 | +1 min | +3 min |
| Fri 2 Oct | Sevenoaks 14:03 | 0 min | — |
| Thu 1 Oct | Sevenoaks 14:03 | 0 min | — |
| Wed 30 Sept | Sevenoaks 14:03 | 0 min | — |
| Tue 29 Sept | Sevenoaks 14:03 | 0 min | — |
| Mon 28 Sept | Sevenoaks 14:07 | +4 min | +5 min |
| Sun 27 Sept | Sevenoaks 13:57 | 0 min | — |
| Sat 26 Sept | Sevenoaks 14:03 | 0 min | +1 min |
| Fri 25 Sept | Sevenoaks 14:03 | +1 min | +1 min |
| Thu 24 Sept | Sevenoaks 14:03 | 0 min | +2 min |
| Wed 23 Sept | Sevenoaks 14:03 | 0 min | — |
| Tue 22 Sept | Sevenoaks 14:03 | 0 min | +1 min |
| Mon 21 Sept | Sevenoaks 14:06 | +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.