Shuttle buses provide inexpensive and convenient transport to/from airports in most cities. Most are 12-seat vans; some have regular routes and stops (which include the main hotels) and some pick up and deliver passengers 'door to door' in their service area. Costs range from $15 to $30 per person.
Read more: http://www.lonelyplanet.com/usa/transport/getting-around/local-transport#ixzz3mTnQSezU