S9 or S8 to Wiesbaden HbforX15 express bus to Darmstadt?

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 →

From

The bus station in front of Terminal 1; the bus then serves the airport's own site gates — Tor 3, the Lufthansa base, Tor 23 to Tor 31 — before leaving the grounds

To

Darmstadt Mathildenplatz in 63 to 68 minutes, via Walldorf, Mörfelden, Gräfenhausen, Otto-Röhm-Straße and Willy-Brandt-Platz; it does not call at Darmstadt Hauptbahnhof or Luisenplatz

Luggage

An ordinary RMV express bus, not a coach; no published luggage rule.

Runs

05:16–00:16

Journey

63–68 min

Twice the AirLiner's journey time, once an hour, ending at Mathildenplatz rather than the Hauptbahnhof. It is EUR 3.80 a head cheaper — EUR 19.00 cheaper for five with a group ticket — and the only Darmstadt bus with no surcharge on a plain RMV ticket.

The first 15 minutes are spent on the airport's own grounds: the timetable puts Tor 31 fifteen minutes out and Walldorf Okrifteler Straße twenty.

Last bus 00:16, first 05:16, every day; nothing to Darmstadt from this airport in between.

The fare level is RMV's matrix figure for the relation, which RMV says is "for the shortest possible connection"; the X15's own fare level is not published elsewhere. Buy the ticket to Darmstadt, not to an intermediate town.

X15 express bus to Darmstadt: price for every party size →