C4a 27203 Madrid-Atocha Cercanías – Alcobendas-San Sebastián de los Reyes
Alerts for train 27203
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line C4a.
Running now · updated 05:09
Between Sol and Madrid-Nuevos Ministerios +3 min
Estimated arrival at Alcobendas-San Sebastián de los Reyes 05:33 05:30 · 77 km/h
- Madrid-Atocha Cercanías04:58
- Sol05:00
- Madrid-Nuevos Ministerios05:05
- Madrid-Chamartín-Clara Campoamor05:11
- Fuencarral05:16
- Universidad-Cantoblanco05:21
- Alcobendas-San Sebastián de los Reyes05:30
Today it is running no worse than usual: typical arrival delay is +7 min; 27% of the last 11 runs arrived on time.
Last 30 days
Arrival delay at Alcobendas-San Sebastián de los Reyes, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Mon 2 Nov Max en route +42 min · last fix heading to Valdelasfuentes +42 min
- Sat 10 Oct Max en route +20 min · last fix heading to Valdelasfuentes +17 min
- Sat 31 Oct Max en route +19 min · last fix heading to Valdelasfuentes +10 min
- Sat 24 Oct Max en route +9 min · last fix heading to Valdelasfuentes +9 min
- Mon 12 Oct Max en route +9 min · last fix heading to Valdelasfuentes +9 min
Distribution · 90 days
21 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 29% · 6
- 3–10 min 57% · 12
- 10–30 min 10% · 2
- 30+ min 5% · 1
On-time by weekday
- 0% M n=2
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 22% S n=9
- 40% S n=10
Stops and timetable
Timetable of the latest run from the operator’s GTFS (9 stops).
Last 90 days, 21 runs. At intermediate stops it is an estimate from the delay at origin and destination. Delays over 2 h count as “> 2 h”: our data does not measure them exactly.
| Stop | Sched. | Usually | 9 days in 10 | Today |
|---|---|---|---|---|
| 04:58 | on time | on time | Passed | |
| 05:00 | ≈ on time | ≈ +1 min | Passed | |
| 05:05 | ≈ +1 min | ≈ +4 min | ||
| 05:11 / 05:12 | ≈ +2 min | ≈ +6 min | ||
| 05:16 | ≈ +2 min | ≈ +8 min | ||
| 05:21 | ≈ +3 min | ≈ +9 min | ||
| 05:24 | ≈ +3 min | ≈ +9 min | ||
| 05:27 | ≈ +4 min | ≈ +10 min | ||
| 05:30 | +4 min | +11 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.
Will I make my connection?
Pick where you get off and how many minutes you have until your next train. We work it out from what this train did over the last 90 days.
Include the time to change platforms. It is an estimate from past data, not a guarantee. Days more than 2 h late count as a missed connection.
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Sol 05:04Partial coverage | +4 min | +4 min |
| Mon 2 Nov | Valdelasfuentes 06:09 | +42 min | +42 min |
| Sun 1 Nov | Valdelasfuentes 05:36 | +7 min | +7 min |
| Sat 31 Oct | Valdelasfuentes 05:38 | +10 min | +19 min |
| Sun 25 Oct | Alcobendas-San Sebastián de los Reyes 05:38 | +7 min | +9 min |
| Sat 24 Oct | Valdelasfuentes 05:36 | +9 min | +9 min |
| Sun 18 Oct | Valdelasfuentes 05:29 | 0 min | +2 min |
| Sat 17 Oct | Valdelasfuentes 05:30 | 0 min | +3 min |
| Mon 12 Oct | Valdelasfuentes 05:36 | +9 min | +9 min |
| Sun 11 Oct | Valdelasfuentes 05:33 | +1 min | +5 min |
| Sat 10 Oct | Valdelasfuentes 05:44 | +17 min | +20 min |
| Sun 4 Oct | Valdelasfuentes 05:32 | 0 min | +4 min |
| Sun 27 Sept | Valdelasfuentes 05:33 | +6 min | +6 min |
| Sun 20 Sept | Alcobendas-San Sebastián de los Reyes 05:35 | +4 min | +8 min |
| Sat 19 Sept | Valdelasfuentes 05:31 | +4 min | +5 min |
| Sun 13 Sept | Valdelasfuentes 05:35 | +8 min | +17 min |
| Sat 12 Sept | Valdelasfuentes 05:31 | +4 min | +10 min |
| Sun 23 Aug | Valdelasfuentes 05:30 | +2 min | +3 min |
| Sat 22 Aug | Valdelasfuentes 05:29 | +2 min | +3 min |
| Sun 16 Aug | Valdelasfuentes 05:30 | +3 min | +3 min |
| Sat 15 Aug | Valdelasfuentes 05:32 | +4 min | +4 min |