|Length:||38 km (24 mi)|
|S31 near Eisenstadt|
|Regions:||Lower Austria, Burgenland|
The Südost Autobahn (A3; 'Southeast Motorway') is a motorway, or ‘Autobahn’, in Austria. It runs from the Süd Autobahn at the junction Knoten Guntramsdorf southeast to Eisenstadt. Near Eisenstadt the A3 ends, but it is planned to build the Südost Autobahn to the border with Hungary.
- Media related to Südost Autobahn A3 at Wikimedia Commons
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