S7 is an electrified

commuter rail Commuter rail, or suburban rail, is a passenger rail transport service that primarily operates within a metropolitan area, connecting Commuting, commuters to a Downtown, central city from adjacent suburbs or commuter towns. Generally commuter r ...

service operating between

Floridsdorf Floridsdorf (; Central Bavarian: ''Fluridsduaf'') is the 21st district of Vienna (german: 21. Bezirk, Floridsdorf), located in the northern part of the city and comprising seven formerly independent communities: Floridsdorf, Donaufeld, Greater Je ...

and

Vienna International Airport Vienna International Airport (german: Flughafen Wien-Schwechat; ) is the international airport of Vienna, the capital of Austria, located in Schwechat, southeast of central Vienna and west of Bratislava, the capital of Slovakia. It is the ...

, with extended southbound service to Wolfsthal in the greater

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

area and northbound service to

Laa an der Thaya Laa an der Thaya is a town in the Mistelbach District of Lower Austria in Austria, near the Czech border. The population in 2016 was 6224. Geography The town is located in the northern Weinviertel region, near the Thaya river, directly at th ...

, sometimes ending in Wolkersdorf and

Mistelbach ''For the town in Germany, see Mistelbach, Bavaria.'' Mistelbach an der Zaya (; Mistelbach on the (River) Zaya; Central Bavarian: ''Mistlboch'') is a town in the northeast of Austria in Lower Austria, one of Austria's nine federal states. It is ...

. Between Wien Mitte and the airport, S7 provides local service on the route while the

City Airport Train The City Airport Train (CAT) is an express airport rail link train that connects Vienna International Airport and Vienna city center (Wien Mitte railway station) in 16 minutes without intermediate stops. Basic facts The City Air Terminal Betri ...

provides non stop express service to the airport. The S7 uses the former Aspangbahn right-of-way in the city center then, at Kledering, transitions to the former Pressburger Bahn, which connected Vienna and Bratislava, to Wolfsthal. Average travel time between Floridsdorf and Vienna International Airport is 37 minutes.

Route

The S7 uses the right of way of the former Aspang and Pressburger railways as well as the Vienna Trunk Line, in the city center. The line begins at Laa an der Thaya, far in the north of Lower Austria, then comes to Vienna, stopping at Wien Floridsdorf in Northern Vienna, cross the

Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , p ...

on the Northern Railway Bridge, and continue along the Trunk Line to Wien Rennweg keeping just east of Vienna's historical city center. After Rennweg, the route diverges off the Trunk Line and transitions to the former Aspang Railway right of way. After passing Kledering marshalling yard, the route briefly connects to the Danube Overland Railway, via

Flying junction A flying junction or flyover is a railway junction at which one or more diverging or converging tracks in a multiple-track route cross other tracks on the route by bridge to avoid conflict with other train movements. A more technical term is " g ...

. Past Wien Kaiserebersdorf, the route switches to the Pressburger railway, again via Flying Junction. {{Public transport in Vienna Public transport in Austria Vienna S-Bahn