Swiss is a subsidiary of the German airline Lufthansa. It is headquartered at EuroAirport Basel-Mulhouse-Freiburg near Basel, Switzerland. Swiss also has an office at Zürich Airport in Kloten, Switzerland. The company's registered office is within the city of Basel.
The airline uses the IATA Code LX that it inherited from the Swiss regional airline Crossair (Swissair's code was SR). The ICAO code is SWR, inherited from Swissair (Crossair's was CRX), in order to keep international traffic rights.