REX3: headway, hours of service, vehicles
Every 30 minutes in the daytime, every 60 in the evening, last departure 23:01 (Mon–Fri). 10 stops in 2 parts: Langenzersdorf – Praterstern and Hauptbahnhof – Mödling.
In short: Every 30 minutes in the daytime, every 60 in the evening, last departure 23:01 (Mon–Fri). 10 stops in 2 parts: Langenzersdorf – Praterstern and Hauptbahnhof – Mödling.
Headway and hours of service
REX3 does not run through the night. Last departure on weekdays around 23:01, first around 6:01; the night buses cover the hours in between.
The S-Bahn trunk line between Hauptbahnhof/St. Marx and Praterstern is closed from 7 September 2026 to the end of October 2027 (ÖBB S-Bahn Wien upgrade). Until then the REX3 runs in 2 parts: Langenzersdorf – Praterstern and Hauptbahnhof – Mödling; the U1, U2 and U4 run more often in between.
Vehicles
75 m, 160 km/h, 487 places, 24 bike spaces, low-floor entry
67 m, 140 km/h, 451 places, 15 bike spaces, low-floor entry
ÖBB trains (S-Bahn, REX, CJX, R) are not assigned to lines permanently: the Cityjet and the Talent are both air-conditioned (the 4020 series was retired in July 2026); which one comes is not in any open data source.
10 stops
Langenzersdorf – Praterstern
Hauptbahnhof – Mödling
Ride along on the REX3, live on the map →Frequently asked
How often does the REX3 run?
daytime every 30 min · evenings every 60 · 6:01–23:01 on weekdays, daytime every 30 min · evenings every 60 · 6:01–23:01 on Saturdays, daytime every 30 min · evenings every 60 · 6:01–23:01 on Sundays. Headway is the median gap between departures per direction at the busiest stop, from the ÖBB timetable as of 5 November 2026.
When is the last REX3?
On weekdays around 23:01, on Saturdays 23:01, on Sundays 23:01. First departure on weekdays around 6:01.
Is the REX3 air-conditioned?
ÖBB trains (S-Bahn, REX, CJX, R) are not assigned to lines permanently: the Cityjet and the Talent are both air-conditioned (the 4020 series was retired in July 2026); which one comes is not in any open data source.
Does the REX3 run at night?
REX3 does not run through the night. Last departure on weekdays around 23:01, first around 6:01; the night buses cover the hours in between.
Why does the REX3 not run across the trunk line?
The S-Bahn trunk line between Hauptbahnhof/St. Marx and Praterstern is closed from 7 September 2026 to the end of October 2027 (ÖBB S-Bahn Wien upgrade). Until then the REX3 runs in 2 parts: Langenzersdorf – Praterstern and Hauptbahnhof – Mödling; the U1, U2 and U4 run more often in between.
This page as data: JSON · all lines: CSV · all stops: CSV · what is in them (CC BY 4.0)
Source: Wiener Linien, GTFS timetable data (data.gv.at, CC BY 4.0); S-Bahn: ÖBB-Personenverkehr AG, GTFS timetable and passenger vehicle data (data.oebb.at, CC BY 4.0); headway = median gap between departures per direction, daytime 6–20 h, evenings 20–24 h, nights 1–4 h. Fleet and air conditioning: Wiener Linien, Klimaanlagen, and ÖBB vehicle data. Positions on the map are computed from the timetable, not measured.
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