CAT vs Railjet vs S-Bahn vs bus: Vienna Airport train comparison
CAT Transfer: Vienna Airport – Wien Mitte
Should I take the CAT or the Railjet from Vienna Airport?
Take the Railjet (€4.40) unless you need to check bags at Wien Mitte before your flight. The CAT (€15) and Railjet run the same 16-minute journey on the same infrastructure. The CAT's only real advantage is the City Airport Terminal check-in service — for departures, not arrivals. For arrivals, the Railjet wins on price every time.
The Vienna Airport train puzzle
Vienna Airport has three rail services connecting it to the city centre. The airport’s marketing focuses on the CAT — the most profitable for the operator. Independent travellers often discover only after arrival that the Railjet exists, covers the same distance in the same time, and costs a third of the price.
This guide does the comparison honestly, so you make the right choice before you board.
The four options side by side
| Service | Cost | Time | Terminus | Frequency |
|---|---|---|---|---|
| CAT | €15 single | 16 min | Wien Mitte (U3/U4) | Every 30 min |
| ÖBB Railjet | €4.40 | 16 min | Wien Hbf (U1/U6) | Every 30 min |
| S-Bahn S7 | €4.40 | 25 min | Wien Mitte | Every 30 min |
| Bus 1185 | €11 | 40 min | Wien Hbf | Every 30 min |
The headline: for the same 16-minute journey, you pay €4.40 (Railjet) or €15 (CAT). The route infrastructure is shared.
The CAT: what it actually offers
The CAT (City Airport Train) is operated by a consortium separate from ÖBB. It runs non-stop between VIE and Wien Mitte in 16 minutes on dedicated-priority infrastructure. The trains are modern, comfortable, and well-branded with luggage space and Wi-Fi.
The one genuine advantage: The City Airport Terminal (CAT) at Wien Mitte station. Here, passengers departing Vienna can:
- Check bags with Austrian Airlines (and some partner airlines) up to 75 minutes before departure
- Get their boarding pass
- Pass through airport security
This means on the day you fly home, you check in at Wien Mitte, board the CAT with a carry-on, arrive at VIE, and walk directly to your gate without queuing at check-in desks. For travellers with checked luggage on Austrian Airlines, this is a genuinely valuable service.
For arrivals: there is no CAT-specific advantage. You arrive at Wien Mitte instead of Wien Hbf. Wien Mitte has U3 and U4 connections. Wien Hbf (Railjet terminus) has U1 and U6 connections. Both are major transit hubs within easy reach of every Vienna district. There is no material difference for arrivals.
CAT transfer: Vienna Airport to Wien Mitte stationOur verdict on the CAT: Buy it on your departure day if you’re on Austrian Airlines and have checked baggage. Do not buy it on arrival unless you have an extremely specific reason to prefer Wien Mitte over Wien Hbf.
The ÖBB Railjet: the traveller’s choice
The ÖBB Railjet airport service is a standard ÖBB intercity train that happens to serve Vienna Airport on its route. On the Wien Hbf–VIE segment, it runs non-stop (16 minutes, same as CAT). The trains are comfortable double-deckers with large luggage areas.
Cost: €4.40 for the “Einfachticket” airport-to-city segment. Buy at ÖBB ticket machines in the terminal, online at oebb.at, or from the ÖBB app.
Important: The €4.40 ticket covers the airport segment AND includes valid transit within Vienna city zones — so you can continue on U-Bahn without buying an additional city ticket.
Terminus: Wien Hbf (Vienna Hauptbahnhof). This is Austria’s largest railway hub, on U1 (red line, runs through the city centre to Stephansplatz and beyond) and U6. From Wien Hbf, you are 2 stops from Karlsplatz (U1), 4 stops from Stephansplatz (U1).
Timetable: Check oebb.at for exact departure times from the airport platform. Trains run approximately :14 and :44 past the hour, but this varies — verify before travelling. The platform is well-signed from the airport terminal.
Is the Railjet good? Yes. The journey is smooth, fast, and the train is comfortable. You are travelling on the same rail infrastructure as the CAT. The only visible difference is the train livery.
The S-Bahn S7: good for intermediate stops
The S7 is the suburban rail option: slower (25 minutes), same price (€4.40), more stops. The stops between the airport and Wien Mitte include Schwechat, Kledering, Rennweg, and Praterstern — which are useful if your hotel is in the 2nd district (Praterstern is the 2nd district hub, on U1 and U2).
When to take the S7:
- Your hotel is in the 2nd district (Prater area, Leopoldstadt)
- You want the Praterstern connection for the Prater amusement park or Riesenrad
- The next Railjet is 25 minutes away and the S7 is leaving now
For most visitors to central Vienna (1st, 4th, 6th, 7th district hotels), the Railjet is faster.
The bus: why to skip it
Bus 1185 runs between VIE and Wien Hbf via the motorway in approximately 40 minutes. It costs €11 — more than the Railjet, slower than every train option, and without the luggage comfort of a rail car.
The bus makes sense in exactly one scenario: the last trains of the night have already run (after approximately 23:30) and you need a surface connection before the night bus service kicks in. Outside this window, take the train.
Taxi and rideshare: when it makes sense
For groups of three or four people sharing the fare, a taxi or Uber can be competitive per-person with the CAT. Door-to-door convenience matters if your hotel is not near a U-Bahn station.
Metered taxi: Licensed taxis from the official rank outside arrivals cost €35–40. The meter must run — if a driver suggests a “flat rate” before starting, exit and choose another taxi or use the Uber/Bolt app.
Uber and Bolt: Both operate at VIE. Request at the designated pick-up area outside arrivals (check signage — it changes). €30–40 depending on demand and destination.
Critical warning: Taxi touts operating inside the arrivals hall are not licensed metered taxis. They quote high flat rates and refuse meter use. This is well-documented; see our airport taxi scams guide for what to watch for.
Airport transfer to Vienna city centre (pre-booked, reliable)A pre-booked private transfer is the legitimate premium option: fixed price agreed in advance, driver meeting you by name, no negotiation on arrival. Worth it for late-night arrivals with luggage and a group.
Which terminus is better: Wien Mitte or Wien Hbf?
This is the practical distinction between the CAT (Wien Mitte) and the Railjet (Wien Hbf).
Wien Mitte (U3, U4):
- U3 runs east-west through the 1st and 3rd district, connecting to Stephansplatz and Westbahnhof
- U4 runs north-south-southwest, connecting to Schwedenplatz and Schönbrunn
- Good for: hotels in the 1st, 3rd, or 4th district; access to Schönbrunn (U4)
Wien Hbf (U1, U6):
- U1 runs north-south through the city, connecting to Stephansplatz, Praterstern, and Reumannplatz
- U6 runs in a curve from Floridsdorf to Siebenhirten
- Good for: hotels near Stephansplatz (2 stops U1), Naschmarkt area (U4 from Karlsplatz, one change from U1)
- Note: Wien Hbf is also the departure point for most ÖBB long-distance trains — convenient for onward travel to Bratislava, Budapest, or Salzburg on the same day
The honest answer: The practical difference is minimal. Both are well-connected hubs. Most central Vienna hotels are equidistant or nearly so from either terminus via the U-Bahn network.
Practical checklist for airport arrival in Vienna
- Exit baggage claim and follow “Schnellbahn / Airport Train” signs to the rail level
- Check departure boards for next Railjet or S7 (they share a platform area with CAT)
- Buy ÖBB ticket at machine — select “Wien Hbf” (Railjet) or use ÖBB app
- Validate the ticket or use app ticket (no validation needed)
- Board the correct train — CAT is clearly marked, Railjet/S7 also clearly marked
- At Wien Hbf: follow U-Bahn signs to your onward connection
Frequently asked questions about Vienna Airport trains
Do the CAT and Railjet run on the same tracks?
Yes. Both run on the same high-speed rail infrastructure between Vienna Airport and the city. The 16-minute journey time is identical. The difference is terminus and price.
Which is faster: CAT, Railjet, or S-Bahn?
CAT and Railjet are equally fast at 16 minutes. The S7 takes 25 minutes with intermediate stops.
Does the Railjet go to Wien Mitte or Wien Hbf?
The ÖBB Railjet terminates at Wien Hbf. The CAT and S7 terminate at Wien Mitte.
How often do the trains run from Vienna Airport?
CAT and Railjet each run every 30 minutes. Combined, you usually have a train every 10–15 minutes. Check oebb.at for real-time departures.
Can I use a Vienna transit pass on the CAT or Railjet?
No — both require separate ÖBB tickets. However, your ÖBB ticket is valid for onward transit within Vienna city zones, so you don’t need a separate city ticket on arrival.
Frequently asked questions about CAT vs Railjet vs S-Bahn vs bus: Vienna Airport train comparison
Do the CAT and Railjet run on the same tracks?
Which is faster: CAT, Railjet, or S-Bahn?
Does the Railjet go to Wien Mitte or Wien Hbf?
How often do the trains run from Vienna Airport?
Can I use a Vienna transit pass on the CAT or Railjet?
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