Data from the last available run on 18 September 2026. This does not confirm the current train status.
Tickets Roma Tiburtina → Guidonia-MontecelioCompare Trenitalia and Italo prices · Ad
Real-time data. Updates every 10 seconds.
Delay history
Average daily delay over the last 30 days
On time
63%
Avg delay
+1 min
Max delay
+32 min
Runs
21
Typical schedule
Stops and times of REG 4542 from ROMA TERMINI to GUIDONIA-MONTECELIO on a typical weekday. Actual times may vary.
| Stop | Arrival | Departure |
|---|---|---|
| Roma Termini | — | 05:00 |
| Roma Prenestina | 05:06 | 05:07 |
| Palmiro Togliatti | 05:11 | 05:12 |
| La Rustica Città | 05:16 | 05:17 |
| Ponte di Nona | 05:21 | 05:22 |
| Lunghezza | 05:25 | 05:26 |
| Bagni di Tivoli | 05:33 | 05:34 |
| Guidonia-Montecelio | 05:41 | — |
Over the last 30 days, REG 4542 has an average delay of 1 minutes and is on time in 63% of observed runs (21).
Frequently asked questions
What time does REG 4542 depart?
REG 4542 departs from ROMA TERMINI at 05:00 (typical schedule). Actual times may vary.
How many stops does REG 4542 make?
REG 4542 connects ROMA TERMINI to GUIDONIA-MONTECELIO with 8 stops.
Is REG 4542 on time?
Over the last 30 days, REG 4542 is on time in 63% of runs, with an average delay of 1 minutes.
Roma Tiburtina → Guidonia-Montecelio
Ad