- From
- Regionalbahnhof, Terminal 1 level 0, platforms Regio 1 to 3 — the S8 westbound, towards Mainz and Wiesbaden
- To
- Mainz Römisches Theater in 23 minutes, Mainz Hauptbahnhof in 29, Mainz Nord in 33; the train goes on to Wiesbaden Hauptbahnhof in 43
- Luggage
- Racks by the doors; a commuter train, full at rush hour.
- Runs
- All night
- Journey
- 29 min
Take the S8, not the S9. Both leave the same platforms westbound, but the S9 turns off after Mainz-Bischofsheim to "Mainz-Kastel" — a district of Wiesbaden on the far bank of the Rhine, by RMV's own tariff plan — and never reaches Mainz Hauptbahnhof.
Four or more of you: buy the Gruppentageskarte at price level 4, EUR 22.50 for up to five, against EUR 6.90 each. Three pay EUR 20.70 in singles and lose EUR 1.80 by taking it — unless they are coming back the same day.
Every one of the 141 westbound S8 departures in RMV's 2026 timetable takes 29 minutes to Mainz Hauptbahnhof, at :00 and :30 past the hour, day and night.
On Sunday-to-Thursday nights, service to Mainz thins: the 02:00 and 03:00 trains end at Kelsterbach and the 04:00 slot is an S9 to Wiesbaden, so departures are hourly between 01:30 and 04:30 (01:30, 02:30, 03:30, 04:30). Friday, Saturday and pre-holiday nights keep the half-hourly S8 service. Night departures may be replaced by buses.
Until 19 September 2026, the S8 is replaced by buses between Mainz-Bischofsheim and Rüsselsheim from Friday 11 September 21:00 to Monday 14 September 05:00, with further night closures (21:00–05:00) until 25 September. Nothing has been published for after 25 September.
Going back, a Mainz city ticket (EUR 3.90, the Wiesbaden/Mainz level) is not valid to the airport; you need Preisstufe 4 again.
S8 to Mainz Hbf: price for every party size
Check RMV fares with VGF