Vienna · Airport transfer
From 7 September 2026 until the end of October 2027, the central S-Bahn section between Praterstern and Hauptbahnhof is closed for major works. That changes the familiar airport routes: CAT temporarily runs as a bus, S7 terminates at St. Marx, while REX7 and Railjet are more useful for Hauptbahnhof.
The best choice is not about the transport brand. It is about your exact hotel address. Wien Mitte, Hauptbahnhof and St. Marx now lead to different sensible routes.
The short answerWhat to check firstDestinationCheck firstWhyWien Mitte / U3 / U4CAT replacement busDirect to Wien Mitte, about 21 minutesHauptbahnhof / southern ViennaRailjet or REX7Direct trains; Railjet takes about 15 minutes to HauptbahnhofSt. Marx / tram 18 or 71 connectionsS7During the closure S7 is shortened to St. MarxNot sureCompare the full door-to-door routeOne extra transfer can matter more than a 10–15 minute train-time difference
1. CAT is a bus for now — useful for Wien MitteDuring the works, City Airport Train does not run as a train to Wien Mitte. Its official replacement is a premium coach between the airport and Wien Mitte/Landstraße. The Vienna Tourist Board gives a journey time of about 21 minutes and up to five services per hour; the published pattern is roughly every 12 minutes between 07:00 and 19:00 and every 15 minutes during the surrounding operating periods.Checked on 10 September 2026, CAT lists a standard fare of €14.90 one way and €24.90 return. Reduced offers exist for specific cards or eligibility, so do not treat the promotional fare as universal. Another important change: City Check-In at Wien Mitte is unavailable during the replacement-bus period.2. Railjet: the simplest rail option for HauptbahnhofIf your hotel is near Wien Hauptbahnhof, or you are connecting to another train, Railjet is the natural benchmark. The Vienna Tourist Board lists roughly 15 minutes nonstop from the airport to Hauptbahnhof and around two trains per hour. The published standard adult fare is €5.50.If you already hold a valid pass for Vienna's core public-transport zone, check whether you only need the airport boundary supplement. Vienna's visitor information currently quotes €2.30 for that additional section where the relevant city pass is valid. Verify the exact ticket before buying.3. REX7: another direct route to HauptbahnhofREX7 is also useful during the closure. Current works information gives about 20 minutes from the airport to Hauptbahnhof. If its departure fits your arrival better, there is no reason to default automatically to CAT simply because CAT is better known to visitors.4. S7: still useful, but not to Wien MitteThis is the key correction to many older guides. During the closure S7 is shortened to St. Marx; Wien Mitte/Landstraße and Rennweg are not reached on the usual rail path. From St. Marx, onward options include trams 18/71 or bus 74A depending on your address. Vienna's visitor information lists €5.50 as the adult public-transport fare for S7/REX7/Railjet into the city zone.
A 60-second decision after landingOpen your hotel address and identify the logical hub: Wien Mitte, Hauptbahnhof or St. Marx.For Wien Mitte, compare the CAT bus with the rest of your local journey.For Hauptbahnhof, start with Railjet/REX7; they are direct and materially cheaper than the standard CAT fare.For St. Marx and areas with convenient tram links, S7 may remain the better fit.With heavy luggage, children or a late arrival, count transfers, not only minutes on the train.Do not navigate from an old screenshot. The closure is planned through the end of October 2027, and temporary timetables or works phases can change. Check the live departure on your travel day.Three common scenariosHotel near StephansplatzThe CAT bus to Wien Mitte plus U3 can be very simple. Compare it with Railjet to Hauptbahnhof plus U1; fare and transfer convenience may change the winner.Hotel near HauptbahnhofRailjet or REX7 should normally be the first options you check. Going to Wien Mitte and then back across the city only for the CAT brand usually adds unnecessary travel.Accommodation near St. MarxS7 may leave you closer to your final destination. Check the last local segment before choosing the more famous central-station route.
SourcesVienna Tourist Board — airport connection changes 2026–2027Vienna Tourist Board — airport to city centerCity Airport Train — Vienna Airport Bus and current faresFacts and fares checked on 10 September 2026. Timetables and prices can change.
