Northern 121N21
View line Northern
Alerts for train 121N21
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Northern.
It does not run today
Last recorded run: Saturday 24 October +5 min
The mini-map returns when the train runs
On-time · 30 days
74%
17/23 runs under 3 min
RT coverage: 23 full · 0 partial · 0 no data
On-time · 90 days
77%
56/73 runs under 3 min
RT coverage: 73 full · 0 partial · 0 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
+11min
9 in 10 runs arrive with less than this
30 days: +17 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
- Tue 13 Oct Max en route +30 min · last fix heading to Haltwhistle +25 min
- Mon 5 Oct Max en route +22 min · last fix heading to Haydon Bridge +21 min
- Wed 30 Sept Max en route +20 min · last fix heading to Haltwhistle +19 min
- Thu 6 Aug Max en route +15 min · last fix heading to 13303 +15 min
- Sat 19 Sept Max en route +14 min · last fix heading to 13303 +12 min
Distribution · 90 days
73 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 18% · 13
- On time 59% · 43
- 3–10 min 11% · 8
- 10–30 min 12% · 9
- 30+ min 0% · 0
On-time by weekday
- 75% M n=12
- 75% T n=12
- 73% W n=11
- 83% T n=12
- 85% F n=13
- 69% S n=13
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 24 Oct | Haltwhistle 17:02 | +5 min | +5 min |
| Fri 23 Oct | Haydon Bridge 16:58 | +2 min | +2 min |
| Thu 22 Oct | Haydon Bridge 16:56 | 0 min | +1 min |
| Wed 21 Oct | Haltwhistle 17:04 | +8 min | +9 min |
| Tue 20 Oct | Haltwhistle 16:57 | 0 min | +6 min |
| Mon 19 Oct | Haydon Bridge 16:54 | −2 min | — |
| Sat 17 Oct | Haltwhistle 16:58 | +2 min | +2 min |
| Fri 16 Oct | Haltwhistle 16:54 | −2 min | +4 min |
| Thu 15 Oct | Haydon Bridge 16:55 | −1 min | +1 min |
| Wed 14 Oct | Hexham 16:55 | −1 min | — |
| Tue 13 Oct | Haltwhistle 17:21 | +25 min | +30 min |
| Mon 12 Oct | Haydon Bridge 16:55 | −1 min | — |
| Sat 10 Oct | Haltwhistle 17:02 | +6 min | +7 min |
| Fri 9 Oct | Haydon Bridge 16:55 | −1 min | — |
| Thu 8 Oct | Haltwhistle 16:55 | −1 min | — |
| Wed 7 Oct | Haltwhistle 16:55 | −1 min | +1 min |
| Tue 6 Oct | Hexham 16:54 | −2 min | — |
| Mon 5 Oct | Haydon Bridge 17:17 | +21 min | +22 min |
| Sat 3 Oct | 13303 17:08 | +2 min | +3 min |
| Fri 2 Oct | Haltwhistle 16:57 | 0 min | +1 min |
| Thu 1 Oct | 13303 16:55 | +1 min | +3 min |
| Wed 30 Sept | Haltwhistle 16:36 | +19 min | +20 min |
| Tue 29 Sept | 13303 16:53 | −1 min | +1 min |
| Mon 28 Sept | 13303 16:57 | +3 min | +4 min |
| Sat 26 Sept | 13303 17:15 | +9 min | +10 min |
| Fri 25 Sept | 13303 17:05 | +11 min | +12 min |
| Thu 24 Sept | 13303 16:53 | −1 min | — |
| Wed 23 Sept | 13303 16:54 | 0 min | +1 min |
| Tue 22 Sept | 13303 16:53 | −1 min | — |
| Mon 21 Sept | 13303 17:01 | 0 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.