St. Vincent is on the main air routes of the Caribbean, with direct flights to Trinidad and Barbados as well as the other islands to the north. In 2001 there were 6 airports and airfields, 5 of which had paved runways. The international airport is located on the southern tip of the island, near Kingstown; one of the much smaller airports is located on the east coast, north of Georgetown. Small airports are also located on Union, Canouan, and Mustique islands. In 1991, the construction industry and the infrastructure were given a minor boost with the government's announcement of an US $18.5 million airport improvement and road construction and upgrading program.
All of the Grenadines have excellent harbors served by a ferry service operating out of Kingstown. Wharf facilities were enlarged in the early 1980s, with financial support from the United States, to include a deepwater pier. In 2002, the merchant fleet comprised 788 ships totaling 7,000,660 GRT. Although the main road of St. Vincent, going down the east coast and up the west coast, does not encircle the island, it does connect all the main towns with the capital. As of 2002, the islands had about 1,040 km (646 mi) of roads, of which 320 km (199 mi) were paved. About 8,110 vehicles were registered in 1995, including 4,935 passenger cars. There is approximately one vehicle for every 15 residents.