Govia Thameslink Railway 542L66
View line Govia Thameslink Railway
Alerts for train 542L66
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
78%
18/23 runs under 3 min
RT coverage: 23 full · 0 partial · 0 no data
On-time · 90 days
84%
57/68 runs under 3 min
RT coverage: 68 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: +4 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 10 Sept Max en route +31 min · last fix heading to Letchworth Garden City +31 min
- Sat 24 Oct Max en route +24 min · last fix heading to Letchworth Garden City +23 min
- Mon 17 Aug Max en route +21 min · last fix heading to Letchworth Garden City +21 min
- Wed 14 Oct Max en route +19 min · last fix heading to Letchworth Garden City +18 min
- Wed 2 Sept Max en route +18 min · last fix heading to Letchworth Garden City +18 min
Distribution · 90 days
68 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 4% · 3
- On time 79% · 54
- 3–10 min 9% · 6
- 10–30 min 6% · 4
- 30+ min 1% · 1
On-time by weekday
- 75% M n=12
- 100% T n=13
- 67% W n=12
- 92% T n=12
- 90% F n=10
- 78% S n=9
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Fri 30 Oct | Letchworth Garden City 23:08 | −1 min | +1 min |
| Thu 29 Oct | Letchworth Garden City 23:10 | +1 min | +4 min |
| Wed 28 Oct | Letchworth Garden City 23:09 | 0 min | +2 min |
| Tue 27 Oct | Letchworth Garden City 23:11 | +2 min | +4 min |
| Sat 24 Oct | Letchworth Garden City 23:31 | +23 min | +24 min |
| Fri 23 Oct | Letchworth Garden City 23:09 | 0 min | +2 min |
| Thu 22 Oct | Letchworth Garden City 23:11 | +2 min | +4 min |
| Wed 21 Oct | Letchworth Garden City 23:08 | −1 min | +2 min |
| Tue 20 Oct | Letchworth Garden City 23:10 | +1 min | +3 min |
| Mon 19 Oct | Letchworth Garden City 23:09 | +1 min | +2 min |
| Sat 17 Oct | Letchworth Garden City 23:08 | 0 min | — |
| Fri 16 Oct | Letchworth Garden City 23:10 | +1 min | +3 min |
| Thu 15 Oct | Letchworth Garden City 23:07 | −1 min | +1 min |
| Wed 14 Oct | Letchworth Garden City 23:26 | +18 min | +19 min |
| Tue 13 Oct | Letchworth Garden City 23:09 | 0 min | +2 min |
| Mon 12 Oct | Letchworth Garden City 23:08 | −1 min | +1 min |
| Sat 10 Oct | Letchworth Garden City 23:08 | −1 min | +2 min |
| Fri 9 Oct | Letchworth Garden City 23:13 | +4 min | +6 min |
| Thu 8 Oct | Letchworth Garden City 23:09 | 0 min | +1 min |
| Wed 7 Oct | Letchworth Garden City 23:07 | −1 min | +1 min |
| Tue 6 Oct | Letchworth Garden City 23:09 | 0 min | +2 min |
| Mon 5 Oct | Letchworth Garden City 23:12 | +4 min | +4 min |
| Sat 3 Oct | Letchworth Garden City 22:59 | +4 min | +4 min |
| Tue 29 Sept | Letchworth Garden City 23:09 | 0 min | +2 min |
| Mon 28 Sept | Letchworth Garden City 23:11 | +2 min | +3 min |
| Sat 26 Sept | Letchworth Garden City 23:08 | 0 min | +2 min |
| Fri 25 Sept | Letchworth Garden City 23:10 | +1 min | +3 min |
| Thu 24 Sept | Letchworth Garden City 23:07 | −2 min | +1 min |
| Wed 23 Sept | Letchworth Garden City 23:14 | +5 min | +5 min |
| Tue 22 Sept | Letchworth Garden City 23:09 | 0 min | +2 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.