Liechtenstein's one railway line, the Feldkirch–Buchs railway, is operated by Austrian Federal Railways (ÖBB). As such, it represents an exception to the more usual Liechtenstein practice of cooperating closely with Switzerland, as in the case of the principality's use of the Swiss franc as its currency and its membership of a common customs area with its western neighbour
The railway line carries international services between Austria and Switzerland, most of which run non-stop through the principality. Only one local train service stops at three of the four stations located in Liechtenstein. The S2 (or R2 when it skips the stops of Gisingen and Tisis in Feldkirch) of Vorarlberg S-Bahn runs 11 times in each direction a day on Workdays (Monday to Friday excluding Austrian Holidays) connecting Buchs SG to Feldkirch. In addition, there are 9 long-distance international trains that pass through Liechtenstein without stopping (Railjet, EuroCity). The line is also used to transport freight.
Plans have been made to double-track this rail line, however, efforts have stalled after the loan to pay for its construction was rejected by a local referendum in 2020.[1] This would have allowed some long-distance international trains to stop at Nendeln station.