Govia Thameslink Railway 639O81
View line Govia Thameslink Railway
Alerts for train 639O81
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
80%
16/20 runs under 3 min
RT coverage: 20 full · 0 partial · 0 no data
On-time · 90 days
75%
51/68 runs under 3 min
RT coverage: 68 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
30 days: 0 min
P90
+12min
9 in 10 runs arrive with less than this
30 days: +11 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
- Sat 12 Sept Max en route +45 min · last fix heading to Sutton (London) +37 min
- Thu 30 Jul Max en route +35 min · last fix heading to Sutton (London) +29 min
- Thu 27 Aug Max en route +29 min · last fix heading to Sutton (London) +27 min
- Wed 29 Jul Max en route +22 min · last fix heading to Sutton (London) +19 min
- Thu 23 Jul Max en route +14 min · last fix heading to Sutton (London) +14 min
Distribution · 90 days
68 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 38% · 26
- On time 37% · 25
- 3–10 min 12% · 8
- 10–30 min 12% · 8
- 30+ min 1% · 1
On-time by weekday
- 80% M n=10
- 73% T n=11
- 55% W n=11
- 64% T n=11
- 92% F n=13
- 82% S n=11
- 100% S n=1
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 10 Oct | Sutton (London) 00:07 | +11 min | +12 min |
| Fri 9 Oct | Sutton (London) 23:55 | −1 min | +4 min |
| Thu 8 Oct | Sutton (London) 23:56 | +2 min | +3 min |
| Wed 7 Oct | Carshalton 23:54 | 0 min | +5 min |
| Tue 6 Oct | Sutton (London) 23:56 | +2 min | +7 min |
| Mon 5 Oct | Carshalton 23:54 | 0 min | +3 min |
| Sat 3 Oct | Sutton (London) 23:54 | −2 min | +3 min |
| Fri 2 Oct | Sutton (London) 23:54 | −2 min | +1 min |
| Thu 1 Oct | Sutton (London) 23:55 | 0 min | +2 min |
| Wed 30 Sept | Sutton (London) 23:54 | −2 min | +2 min |
| Tue 29 Sept | Sutton (London) 23:54 | −2 min | +4 min |
| Mon 28 Sept | Sutton (London) 23:55 | −1 min | +4 min |
| Sat 26 Sept | Sutton (London) 23:55 | −1 min | +1 min |
| Fri 25 Sept | Sutton (London) 23:56 | 0 min | +1 min |
| Fri 18 Sept | Sutton (London) 23:56 | 0 min | +5 min |
| Thu 17 Sept | Sutton (London) 00:01 | +5 min | +10 min |
| Wed 16 Sept | Sutton (London) 00:08 | +12 min | +14 min |
| Tue 15 Sept | Sutton (London) 23:54 | −2 min | +6 min |
| Mon 14 Sept | Sutton (London) 23:54 | −2 min | +2 min |
| Sat 12 Sept | Sutton (London) 00:33 | +37 min | +45 min |
| Fri 11 Sept | Sutton (London) 23:54 | −2 min | +1 min |
| Thu 10 Sept | Sutton (London) 23:55 | −1 min | +3 min |
| Wed 9 Sept | Sutton (London) 23:55 | −1 min | +4 min |
| Tue 8 Sept | Sutton (London) 23:54 | −2 min | +6 min |
| Mon 7 Sept | Sutton (London) 23:55 | −1 min | +3 min |
| Sat 5 Sept | 63624 23:02 | +2 min | +4 min |
| Fri 4 Sept | Sutton (London) 23:54 | −2 min | +1 min |
| Thu 3 Sept | Sutton (London) 23:54 | −2 min | +4 min |
| Wed 2 Sept | Sutton (London) 00:08 | +13 min | +15 min |
| Tue 1 Sept | Sutton (London) 23:54 | −2 min | +4 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.