Located three miles west of downtown, Palm Beach International Airport (PBI) is a three-runway airport that serves Florida's south-central Atlantic coast. About 5.9 million travelers used PBI in 2014. The airport has a single terminal with three concourses: Concourse A, Concourse B and Concourse C. Air Canada, Allegiant Air, American Airlines, Delta Air Lines, Frontier Airlines, JetBlue Airways, Southwest Airlines, and United Airlines are among the carriers that operate at PBI. Passenger amenities at Palm Beach International Airport include a putting green, spa, children's play area, restaurants, bars and retail shopping. County bus, Tri-Rail and Amtrak all stop at the airport; rental cars, taxis, limousines and hotel courtesy shuttles are also available.