Govia Thameslink Railway 639H20
View line Govia Thameslink Railway
Alerts for train 639H20
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
40%
2/5 runs under 3 min
RT coverage: 5 full · 0 partial · 0 no data
On-time · 90 days
46%
6/13 runs under 3 min
RT coverage: 13 full · 0 partial · 0 no data
Typical delay
+7min
Median at arrival, 90 days
30 days: +7 min
P90
+9min
9 in 10 runs arrive with less than this
30 days: +10 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
- Sun 11 Oct Max en route +12 min · last fix heading to Luton Airport Parkway +11 min
- Sun 16 Aug Max en route +11 min · last fix heading to Luton +9 min
- Sun 18 Oct Max en route +9 min · last fix heading to Luton +8 min
- Sun 30 Aug Max en route +10 min · last fix heading to Luton +8 min
- Sun 26 Jul Max en route +9 min · last fix heading to Luton +8 min
Distribution · 90 days
13 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 46% · 6
- 3–10 min 46% · 6
- 10–30 min 8% · 1
- 30+ min 0% · 0
On-time by weekday
- — M n=0
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- — S n=0
- 46% S n=13
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 18 Oct | Luton 10:09 | +8 min | +9 min |
| Sun 11 Oct | Luton Airport Parkway 10:12 | +11 min | +12 min |
| Sun 4 Oct | Luton 10:03 | +1 min | +5 min |
| Sun 27 Sept | Luton 10:09 | +7 min | +9 min |
| Sun 20 Sept | Luton 10:01 | 0 min | +2 min |
| Sun 13 Sept | Luton 10:00 | −1 min | — |
| Sun 6 Sept | Luton 10:02 | +1 min | +2 min |
| Sun 30 Aug | Luton 10:10 | +8 min | +10 min |
| Sun 23 Aug | Luton 10:09 | +7 min | +9 min |
| Sun 16 Aug | Luton 10:11 | +9 min | +11 min |
| Sun 9 Aug | Luton 10:01 | −1 min | +2 min |
| Sun 2 Aug | Luton 10:02 | 0 min | +4 min |
| Sun 26 Jul | Luton 10:10 | +8 min | +9 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.