Rheintalflug is a regional carrier operating flights with three ERJ-145s. Its main route is Altenrhein-Vienna, it operates six daily flights on this route. Altenrhein is located in Switzerland but is near to the Austrian border. The Austrian state of Vorarlberg is in the very West of the country and it takes at least 7 or 8 hours to drive to Vienna by car or to get there with the train. However, Rheintalflug also operates flights from Vienna to Tallinn, Estonia; Manchester, UK; Geneva, Switzerland and Milan Malpensa, Italy. It also operates charter flights to destinations at the Mediterranean Sea.
Rheintal is the name of the valley where Altenrhein and the main part of Vorarlberg is. Flug means flight. So you could translate it to "Rhine valley flight"
The Austrian press agency now confirmed the two Austrian Airlines Group subsidiaries Tyrolean Airways and Rheintalflug will be merged in 2003.
Swiss aviation news junkie living all over the place