From: http://www.wdwinfo.com/transportation/bus_schedules.htm Special Note: Official Disney Transportation operates according to theme park operating schedules. As a result, please consider park closing times when relying on Disney Transportation to travel to and from resorts, using parks as transfer points. In general, buses run 60-90 minutes before park opening and 60-90 minutes after park closing. From: http://disneyworld.disney.go.com/planning-guides/in-depth-advice/resort-transportation/ Complimentary transportation is available one hour prior to Disney Theme Park opening time up to one hour after Disney Theme Park closing time. Additionally, buses operate until 2:00 a.m. from the Downtown Disney Area. From: http://allears.net/pl/transp.htm Park transportation begins approximately 1 hour prior to that park's opening time and all transportation runs until approximately 1 hour after the parks close (check with Lobby Concierge upon arrival for specific times).