- From
- Regionalbahnhof, Terminal 1 level 0, platforms Regio 1 to 3 — either line westbound
- To
- Wiesbaden Hauptbahnhof: 33 minutes on the S9 via Mainz-Kastel, 43 on the S8 via Mainz Hauptbahnhof; both call at Wiesbaden Ost five minutes before
- Luggage
- Racks by the doors; a commuter train, full at rush hour.
- Runs
- All night
- Journey
- 33–43 min
Take whichever comes first. The S9 is ten minutes quicker (33 against 43) and together they run every 15 minutes by day; the ticket is the same and so is the platform.
Four or more of you: the Gruppentageskarte at price level 4 is EUR 22.50 for up to five against EUR 6.90 each. Three are EUR 1.80 better off on singles for a one-way trip.
At night the S9 stops and the S8 carries on. The last S9 to Wiesbaden is 00:15 (Sunday–Thursday) or 00:45 (Friday, Saturday, pre-holiday); then the S8 via Mainz runs at :00 and :30 (43 minutes), thinning to hourly between 01:30 and 04:30 on weekday nights, with the S9 back at 04:00. Night departures may be replaced by buses.
Until 19 September 2026, the S9 is suspended between Kelsterbach and Wiesbaden Hbf (from 11 July), replaced by the S9X bus; the S8 runs with its own replacement buses in stretches, and is itself replaced between Mainz-Bischofsheim and Rüsselsheim from Friday 11 September 21:00 to Monday 14 September 05:00. More night closures follow to 25 September, with nothing published for after that.
Mainz-Kastel, Mainz-Kostheim and Mainz-Amöneburg are Wiesbaden districts despite the name, by RMV's own tariff plan; the S9 serves Kastel, 25 minutes out, on the way.
S9 or S8 to Wiesbaden Hbf: price for every party size
Check RMV fares with VGF