U4: headway, hours of service, vehicles
Every 4 minutes in the daytime, every 7 in the evening, last departure 0:10 (Mon–Fri), through the night before Saturday and Sunday. 20 stops from Hütteldorf to Heiligenstadt.
In short: Every 4 minutes in the daytime, every 7 in the evening, last departure 0:10 (Mon–Fri), through the night before Saturday and Sunday. 20 stops from Hütteldorf to Heiligenstadt.
Headway and hours of service
U4 runs through the night before Saturday and Sunday, every 15 minutes. On other nights the last departure is around 0:10.
Vehicles
walk-through
being replaced by the X train
On the U4 V trains run with air conditioning, the older Silberpfeil trains without; which one comes is not in any open data source.
20 stops
- Hütteldorf
- Ober St. Veit
- Unter St. Veit
- Braunschweiggasse
- Hietzing
- Schönbrunn
- Meidling Hauptstraße
- Längenfeldgasse
- Margaretengürtel
- Pilgramgasse
- Kettenbrückengasse
- Karlsplatz
- Stadtpark
- Mitte-Landstraße
- Schwedenplatz
- Schottenring
- Roßauer Lände
- Friedensbrücke
- Spittelau
- Heiligenstadt
Frequently asked
How often does the U4 run?
daytime every 4 min · evenings every 7 · 4:51–0:10 on weekdays, through from the night before · daytime every 5 min · evenings every 7 · until 0:10 on Saturdays, through from the night before · daytime every 5 min · evenings every 7 · until 0:10 on Sundays. Headway is the median gap between departures per direction at the busiest stop, from the Wiener Linien timetable as of 31 October 2026.
When is the last U4?
Through the night before Saturday and Sunday; on other nights around 0:10.
Is the U4 air-conditioned?
On the U4 V trains run with air conditioning, the older Silberpfeil trains without; which one comes is not in any open data source.
Does the U4 run at night?
U4 runs through the night before Saturday and Sunday, every 15 minutes. On other nights the last departure is around 0:10.
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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