By bus
Annapolis Transit
Annapolis Transit operates local bus service into town from BWI Airport on Route C-60 (http://www.annapolis.gov/...); service on this lines operates once every two hours from 7AM to 5PM
MTA Maryland
MTA Maryland operates rush-hour commuter bus service routes 922 (http://www.mtamaryland.com/services/commuterbus/schedulesSystemMaps/922CommuterLineForWeb09.pdf and 950 (http://www.mtamaryland.co...) to Annapolis from Washington, D.C.; this service travels from Annapolis in the morning and to Annapolis in the afternoon and evening. They also operate local bus service route 14 (http://www.mtamaryland.com/services/bus/schedule/14schedule.pdf) to Annapolis from the Patapsco light rail station in Baltimore; this service operates all day.
By car
From Baltimore, take I-97 south then go east on Hwy 50.
From Washington, D.C., take Hwy 50 East.
By plane
Many major air carriers fly to Baltimore-Washington International Airport IATA: BWI, in Linthicum, Maryland, only a 30 minute drive from Downtown Annapolis.