Question: Which charter airline based in Miami-Dade county uses a Boeing 737-800?
Context: The Boeing 737 Next Generation, commonly abbreviated as 737NG, is the name given to the −600/-700/-800/-900 series of the Boeing 737 airliner.  It is the third generation derivative of the 737, and follows the 737 Classic (−300/-400/-500) series, which began production in the 1980s.  They are short- to medium-range, narrow-body jet airliners. Produced since 1996 by Boeing Commercial Airplanes, the 737NG series includes four variants and can seat between 110 and 210 passengers. Sun America, Inc., d/b/a JetAmerica, was a proposed American low-cost scheduled public charter airline headquartered in unincorporated Pinellas County, Florida.  On March 10, 2009, the airline announced a number of public scheduled charter flights from underutilized airports to Newark and Minneapolis–St. Paul using a Miami Air International Boeing 737-800 to begin on June 30, 2009.  On May 27, 2009, the airline held its first press conference at Toledo Express Airport, Ohio, announcing its first focus city and the start of flight operations on July 13, 2009.  The airline announced the station markets of Lansing, Michigan; Melbourne, Florida; Minneapolis, Minnesota; Newark, New Jersey; South Bend, Indiana; and Toledo, Ohio.  The airline also publicly stated it was evaluating service to Baltimore, Maryland; Charleston, West Virginia Chicago Midway, Illinois; Rockford, Illinois; Cincinnati, Columbus, and Dayton, Ohio; Greensboro, North Carolina; Hartford, Connecticut; Pittsburgh, Pennsylvania; and Clearwater, Florida.  The airline later delayed the start of service to August 14, 2009.  However, JetAmerica did not begin service as it was unable to finalize slots at Newark. Galaxy Airways was a Greek charter airline based in Athens that existed from 1999 to 2001.  It had a fleet of 3 aircraft, one Boeing 737-500 and two Boeing 737-400. During the 1990s, a series of rudder issues on Boeing 737 aircraft resulted in multiple incidents.  In two separate accidents, pilots lost control of their Boeing 737 aircraft due to a sudden and unexpected movement of the rudder, and the resulting crashes killed everyone aboard.  A total of 157 people aboard the two aircraft were killed.  Similar rudder issues led to a temporary loss of control on at least one other Boeing 737 flight before the problem was ultimately identified.  The National Transportation Safety Board ultimately determined that the accidents and incidents were the result of a design flaw which could result in an uncommanded movement of the aircraft's rudder.  The issues were resolved after the NTSB identified the cause of the rudder malfunction and the Federal Aviation Administration ordered repairs for all Boeing 737 aircraft in service. Miami Air International is an American charter airline based in Miami-Dade County, Florida, United States.  It operates worldwide passenger charter flights for diverse groups including cruise operators, professional sports teams and the United States military.  It is based in Miami International Airport. Songbird Airways (formerly "Sky King") is a charter airline based in Miami, Florida.  Sky King was founded in July 1990 to fly for the NBA's Sacramento Kings.  Sky King operated flights from Florida to Cuba on behalf of Customer Service Providers (CSPs).  Sky King also conducted flights of deportees to undisclosed destinations on behalf of U.S. Immigration and Customs Enforcement (ICE).  In the past, the airline provided charter service to sports teams and businesses using Boeing 737 aircraft sporting various seat configurations.  The airline filed for Chapter 11 bankruptcy protection on March 9, 2010, after it was unable to meet the payment demands of one of its largest creditors, fuel supplier Mercury Air Group.  It filed for bankruptcy again in 2012. Vision Air International is a passenger and cargo charter airline based at Jinnah International Airport, Karachi, Pakistan.  Vision Air International registered as a Private Limited Company in June 2006 and in 2007 had already acquired its Air Charter License for Passenger and Cargo, Domestic and International operations.  Having initially operated Boeing 737-200 and -300 passenger aircraft Vision is now primarily focused on air cargo and operates Boeing 737 freighter aircraft.  Vision transports the majority of Pakistan’s air courier material on its nightly scheduled flights internally within Pakistan. Orion Airways (known simply as 'Orion') was an airline based in the United Kingdom with its head office on the grounds of East Midlands Airport in Castle Donington, North West Leicestershire.  It was created as the charter airline of Horizon Travel and went on to successfully develop scheduled services.  The airline operated a fleet of Boeing 737-200s, Boeing 737-300s and Airbus A300s between 1979-1989. Centralwings was a charter airline based in Warsaw, Poland.  The airline operated as a low-cost airline and then became a charter-only operation in October 2008.  It was a subsidiary of LOT Polish Airlines, operating international services in Europe, using Boeing 737 aircraft.  Its main base was Warsaw Frederic Chopin Airport, with hubs at Gdańsk Lech Wałęsa Airport and John Paul II International Airport Kraków-Balice.  On 26 March 2009 the board of LOT Polish Airlines decided to close Centralwings with no information about what was to happen to its employees. Palau Pacific Airways (PPA) is a charter airline from Palau.  The airline launched scheduled charter flights between Hong Kong and its base Koror on 7 November 2014.  The start-up intends to operate five times weekly charter services to Hong Kong Chek Lap Kok Airport.  The carrier has wet-leased a Boeing 737-800 aircraft on an annual contract from Slovakian Aircraft, Crew, Maintenance and Insurance (ACMI) operator: Air Explore.
Answer: Miami Air International