Avantair|  | 
| Founded | 2003 | 
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| Ceased operations | 2013 | 
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| Fleet size | 57 | 
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| Headquarters | Clearwater, FL | 
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| Key people | Steven F. Santo | 
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| Website | http://www.avantair.com | 
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Avantair was an aircraft  fractional ownership company, headquartered at Clearwater, Florida, U.S.A.. Avantair provided fractional ownership, leasing and time card options within a fleet of twin-turboprop-engined P.180 aircraft. Avantair operated the largest fleet of  Piaggio P180 aircraft in the world with a total fleet size of 56 aircraft as of June 2012. The company went out of business in 2013.