Tradewind, an airline in Westchester, New York, operates charter flights and scheduled shuttles to places like Nantucket, MA, and Newport, RI. They also fly to the Caribbean islands of St. Barts, Antigua, and Anguilla from their airport base in San Juan, Puerto Rico.
Their fleet of propeller planes and Citation jets flies out of private air terminals allowing passengers to avoid airport mayhem. Read more about this stress-free flying option here.