From the excellent book "Deregulation Knockouts: Round Two:"

"SunExpress (Fort Lauderdale, FL): Planned low-fare services in 1991 between the Northeast and Florida with Boeing 727s. Formed by ex-Northeastern International CEO Guy Lindley. Changed name to Destination Sun Airways by end of 1991 and proposed to begin service as Funworld in June 1992 with two Boeing 727-200s; together with commuter carrier Conquest Airlines became a co-investor in Conquest Sun Airlines, headed by Victor Rivas. In 1994, the company was purchased for $2.5 million by AirTran Corp, then parent of Mesaba Airlines, and became AirTran Airways."

Also is this brief comment on another page....

"Conquest Sun Airlines was an amalgamation of Destination Sun (formerly SunExpress) and Austin-based commuter Conquest Airlines."