Crossair
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 | |||||||
| Founded | 1975 (as Business Flyers Basel AG) | ||||||
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| Commenced operations | 18 November 1978 (as Crossair) | ||||||
| Ceased operations | 31 March 2002 (re-organized as SWISS) | ||||||
| Hubs | EuroAirport Basel Mulhouse Freiburg | ||||||
| Frequent-flyer program | Qualiflyer | ||||||
| Subsidiaries | Crossair Europe (1997–2002) | ||||||
| Parent company | SAirGroup | ||||||
| Headquarters | Saint-Louis, Haut-Rhin, France | ||||||
| Founder | Moritz Suter | ||||||
| Website | Crossair.com | ||||||
Crossair Ltd. Co. for Regional European Air Transport (German: Crossair AG für europäischen Regionalluftverkehr) was a Swiss regional airline headquartered on the grounds of EuroAirport Basel Mulhouse Freiburg in Saint-Louis, Haut-Rhin, France, near Basel, Switzerland.
After taking over most of the assets of Swissair following that airline's bankruptcy in 2002, Crossair was restructured to become SWISS.