Wiener Linien runs Vienna's integrated network of five U-Bahn subway lines, an extensive tram network (including the historic Ring tram route), and buses that fill in the gaps — together it's dense enough that most of the city centre and inner districts are within easy walking distance of a station or stop.
Which ticket to buy
For visits of a few days, a time-based travel pass (24, 48 or 72 hours, or an 8-day strip ticket shareable between travellers) is usually the simplest and most economical option — validate it once and use it on any U-Bahn, tram or bus for the duration. Single tickets are also available if you're only making a handful of trips. Tickets can be bought from station vending machines, the Wiener Linien app, or in advance online.
How the honour system works
Vienna doesn't use ticket barriers on most of its network — you're expected to validate your ticket and carry it with you, and plain-clothes inspectors do check periodically, with a significant on-the-spot fine for travelling without a valid ticket. Don't be tempted to skip buying one.
Walking and cycling
The Innere Stadt (Old Town) is largely pedestrianised and easy to explore on foot, and Vienna's public bike-share scheme is a good option for covering more ground, particularly along the Danube or Ringstrasse cycle paths.
Local tip
U-Bahn trains run all night on Friday and Saturday nights (with a Saturday night/Sunday morning night service too), so you're never stuck relying on a taxi late on a weekend.
Frequently Asked Questions
Do I need to buy separate tickets for the U-Bahn and trams in Vienna?
No — Wiener Linien tickets are valid across the U-Bahn, trams and buses, so one ticket covers your whole journey including transfers.
Does Vienna have ticket barriers?
No, most of the network runs on an honour system with random inspections and significant fines for fare-dodging, so always carry a validated ticket.