CAT (City Airport Train)
CAT (City Airport Train) is a non-stop premium link between Vienna International Airport and Wien Mitte station. From 7 September 2026 until the end of October 2027 it runs as CAT by bus, about 21 minutes and every 12 minutes from 7am to 7pm, because the S-Bahn main line through Wien Mitte is closed.
CAT (City Airport Train) operates in the Austrian Rail Operators segment.
CAT (City Airport Train): Core Facts
- Entity Type
- Premium Airport Rail Link
- Legal Name
- City Air Terminal Betriebsgesellschaft m.b.H.
- Founded
- 2003
- Headquarters
- Vienna, Austria
- Parent Company
- Flughafen Wien AG and ÖBB-Personenverkehr AG (joint venture)
- Route
- Wien Mitte to Vienna International Airport (VIE), non-stop
- Journey Time
- About 21 minutes by bus (16 minutes by train before the closure)
- Frequency
- Every 12 minutes 7am to 7pm, every 15 minutes otherwise
- Annual Passengers
- ~2 million
- Check-in
- City Check-in at Wien Mitte for select airlines
- Country
- Austria
- Status
- Active Definition
- Verified
How CAT (City Airport Train) compares
CAT (City Airport Train) is NOT the same as the ÖBB S-Bahn S7 or Railjet services that also connect Vienna Airport to the city, which are cheaper and make intermediate stops. CAT is also distinct from the Vienna Airport Lines buses (Vienna AirportLines) and from the Heathrow Express or Stockholm Arlanda Express, even though it plays the same premium-airport-link role. CAT refers specifically to the service operated by City Air Terminal Betriebsgesellschaft.
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Questions
CAT (City Airport Train): Frequently Asked Questions
What is CAT (City Airport Train)?
CAT (City Airport Train) is Vienna's premium non-stop rail link between the city centre and Vienna International Airport. Until the end of October 2027 CAT (City Airport Train) runs as CAT by bus: premium coaches leave every 12 minutes from 7am to 7pm and take about 21 minutes. A single costs €14.90 and a return €24.90, or €7 with a KlimaTicket, Vorteilscard or Wiener Linien annual pass.
Is CAT (City Airport Train) worth it compared to the S7?
CAT (City Airport Train) is worth it for time-sensitive travellers who value non-stop service and city check-in. The S7 is cheaper, but until the end of October 2027 it runs only between the airport and St. Marx. Railjet, REX and IC trains link the airport with Wien Hauptbahnhof about twice an hour.
Can I check in luggage on CAT (City Airport Train)?
CAT (City Airport Train) has offered City Check-in for selected airlines at Wien Mitte up to 75 minutes before departure. Check cityairporttrain.com for whether City Check-in operates during the CAT by bus period until the end of October 2027.
Related Entities
Other entities covered on the Rail Operators in Austria page:
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Where CAT (City Airport Train) is mentioned on How to Austria
Guides and reference pages on this site that mention CAT (City Airport Train):
Maintained by Jules de Bruin (How to Austria). This page follows the Grounding Page Standard v1.5. Last verified: 2026-04-24.