Govia Thameslink Railway 639O31
View line Govia Thameslink Railway
Alerts for train 639O31
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
88%
23/26 runs under 3 min
RT coverage: 26 full · 0 partial · 0 no data
On-time · 90 days
82%
68/83 runs under 3 min
RT coverage: 83 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 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
- Thu 30 Jul Max en route +92 min · last fix heading to 87617 +90 min
- Thu 13 Aug Max en route +22 min · last fix heading to 87617 +22 min
- Sat 15 Aug Max en route +17 min · last fix heading to West Hampstead Thameslink +17 min
- Fri 9 Oct Max en route +15 min · last fix heading to Streatham +15 min
- Fri 11 Sept Max en route +17 min · last fix heading to Sutton (London) +7 min
Distribution · 90 days
83 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 10% · 8
- On time 72% · 60
- 3–10 min 13% · 11
- 10–30 min 4% · 3
- 30+ min 1% · 1
On-time by weekday
- 85% M n=13
- 92% T n=13
- 69% W n=13
- 73% T n=11
- 67% F n=12
- 92% S n=12
- 100% S n=9
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 14 Oct | Sutton (London) 11:29 | +4 min | +5 min |
| Tue 13 Oct | Sutton (London) 11:25 | 0 min | +3 min |
| Mon 12 Oct | Sutton (London) 11:26 | 0 min | +2 min |
| Sun 11 Oct | Sutton (London) 11:25 | −1 min | — |
| Sat 10 Oct | Sutton (London) 11:24 | −2 min | — |
| Fri 9 Oct | Streatham 11:40 | +15 min | +15 min |
| Thu 8 Oct | Sutton (London) 11:26 | +1 min | +4 min |
| Wed 7 Oct | Sutton (London) 11:25 | −1 min | +3 min |
| Tue 6 Oct | Sutton (London) 11:24 | −1 min | — |
| Mon 5 Oct | Sutton (London) 11:19 | +1 min | +2 min |
| Sun 4 Oct | Sutton (London) 11:25 | −1 min | — |
| Sat 3 Oct | Sutton (London) 11:24 | −1 min | +1 min |
| Fri 2 Oct | Sutton (London) 11:25 | −1 min | +6 min |
| Thu 1 Oct | Sutton (London) 11:27 | +1 min | +4 min |
| Wed 30 Sept | Sutton (London) 11:28 | +3 min | +5 min |
| Tue 29 Sept | Sutton (London) 11:24 | −2 min | +4 min |
| Mon 28 Sept | Sutton (London) 11:24 | −2 min | +2 min |
| Sat 26 Sept | Sutton (London) 11:26 | 0 min | +3 min |
| Fri 25 Sept | Sutton (London) 11:26 | 0 min | +1 min |
| Thu 24 Sept | Sutton (London) 11:25 | 0 min | +3 min |
| Wed 23 Sept | Sutton (London) 11:28 | +2 min | +12 min |
| Tue 22 Sept | Sutton (London) 11:27 | +1 min | +8 min |
| Mon 21 Sept | Sutton (London) 11:26 | 0 min | +5 min |
| Fri 18 Sept | Sutton (London) 11:25 | −1 min | +4 min |
| Thu 17 Sept | Sutton (London) 11:26 | 0 min | +1 min |
| Wed 16 Sept | Sutton (London) 11:25 | 0 min | +2 min |
| Tue 15 Sept | Sutton (London) 11:24 | −2 min | +2 min |
| Mon 14 Sept | Sutton (London) 11:25 | −1 min | +16 min |
| Sat 12 Sept | Sutton (London) 11:25 | −1 min | +2 min |
| Fri 11 Sept | Sutton (London) 11:34 | +7 min | +17 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.