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
67%
18/27 runs under 3 min
RT coverage: 27 full · 0 partial · 0 no data
On-time · 90 days
76%
62/82 runs under 3 min
RT coverage: 82 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: +2 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +5 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 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
- Thu 22 Oct Max en route +16 min · last fix heading to Sutton (London) +14 min
- Tue 20 Oct Max en route +10 min · last fix heading to Carshalton +8 min
Distribution · 90 days
82 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 9% · 7
- On time 67% · 55
- 3–10 min 20% · 16
- 10–30 min 5% · 4
- 30+ min 0% · 0
On-time by weekday
- 69% M n=13
- 92% T n=12
- 58% W n=12
- 75% T n=12
- 62% F n=13
- 83% S n=12
- 100% S n=8
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Mon 9 Nov | Carshalton 11:14 | −2 min | +4 min |
| Sat 7 Nov | Sutton (London) 11:17 | 0 min | +7 min |
| Fri 6 Nov | Sutton (London) 11:19 | +4 min | +4 min |
| Thu 5 Nov | Carshalton 11:14 | −2 min | +4 min |
| Wed 4 Nov | Sutton (London) 11:18 | 0 min | +3 min |
| Tue 3 Nov | Carshalton 11:19 | +2 min | +3 min |
| Mon 2 Nov | Sutton (London) 11:19 | +2 min | +3 min |
| Sun 1 Nov | Sutton (London) 11:25 | −1 min | — |
| Sat 31 Oct | Sutton (London) 11:30 | +2 min | +3 min |
| Fri 30 Oct | Sutton (London) 11:24 | −2 min | +4 min |
| Thu 29 Oct | Hackbridge 11:18 | 0 min | +2 min |
| Wed 28 Oct | Carshalton 11:29 | +3 min | +3 min |
| Tue 27 Oct | Carshalton 11:28 | +2 min | +9 min |
| Mon 26 Oct | Sutton (London) 11:31 | +6 min | +7 min |
| Sat 24 Oct | Sutton (London) 11:25 | 0 min | +1 min |
| Fri 23 Oct | Carshalton 11:28 | +2 min | +15 min |
| Thu 22 Oct | Sutton (London) 11:40 | +14 min | +16 min |
| Wed 21 Oct | Sutton (London) 11:26 | 0 min | +17 min |
| Tue 20 Oct | Carshalton 11:33 | +8 min | +10 min |
| Mon 19 Oct | Sutton (London) 11:30 | +4 min | +5 min |
| Sun 18 Oct | Sutton (London) 11:25 | −1 min | — |
| Sat 17 Oct | Sutton (London) 11:29 | +3 min | +3 min |
| Fri 16 Oct | Sutton (London) 11:29 | +3 min | +8 min |
| Thu 15 Oct | Sutton (London) 11:25 | −1 min | — |
| 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 |
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.