To be able to go to St. Vincent, you need to go to Grenadines first and then from there you take a flight going to St. Vincent.  There are three airlines that could give you a lift and fly you to St. Vincent. One is the American Eagle (tel. 800/433-7300 in the U.S., or 784/456-5000; www.aa.com), it has flights from San Juan going to St. Vincent. They also have departures from Barbados landing to E.T Joshua Airport and St. Vincent. 

 Another airline is the Air Martinique (tel. 784/458-4528) it has only one scheduled flight daily and the plane goes from Martinique to St. Lucia, St. Vincent, and Union Island. 

 The third airline is the Mustique Airways (tel. 784/458-4380; www.mustique.com), they have flight from St. Vincent goint to Grenadines.  The airline sometimes arranges special charters that fly around the islands of Grenada, Aruba, St. Lucia, Antigua, Barbados, and Trinidad.  These special charters have cheaper fares than on some flights of Caribbean Airlines.