There is no shuttle service at the JW Marriott Atlanta Buckhead. The closest airport is Hartsfield Jackson International Atlanta International Airport (ATL). The airport is approximately 30 minutes from the JW Marriott. A typical taxi fee is $48.00.
The Atlanta Area also has a subway system – The Marta. There is a stop just a short distance away from the Marriott (walking distance). The cost is $2.50/person. You can find more information about this transit system here: http://www.itsmarta.com/rail-schedules-or-route.aspx