The busiest airport in central Virginia, Richmond International Airport (RIC) is located about seven miles southeast of downtown Richmond. The airport has three runways and a single terminal with two concourses: Concourse A and Concourse B. Airport amenities include free WIFI internet, a business center, a number of shopping and dining options and a USO Center. Ground transportation options include rental cars and taxis, as well as bus service provided by the Greater Richmond Transit Company. Allegiant Air, American Airlines, Delta Air Lines, JetBlue Airways, Southwest Airlines, and United Airlines operate flights between Richmond and about 20 destinations on the East Coast and in the Midwest. In 2014, about 3.4 million passengers passed through RIC.