Caribbean Sun Airlines Inc., trading as World Atlantic Airlines is an American airline operating on-demand and scheduled charter services. Its corporate headquarters are located in Virginia Gardens, Florida.

Southern Sky Air Tours, d/b/a Direct Air was an airline business based in Myrtle Beach, South Carolina, United States. Direct Air started in 2007 and leased aircraft with charter airlines. Its main base was Myrtle Beach International Airport. Direct Air's flights were operated by Sky King, Inc., Xtra Airways, World Atlantic Airlines, and USA Jet. In March 2012 Direct Air ceased operations, stranding many of its passengers. The airline planned to resume operations on May 15, 2012, although this was contested by the U.S. Department of Transportation. The charter carrier was subject to Chapter 7 liquidation on April 12, 2012.