Baltimore-Washington International Airport is convenient to Annapolis and attractions in southern Maryland. The most convenient way to get to Annapolis is by car or taxi (the fare is roughly $50). From BWI, follow airport exit signs and then take I-97 south to Route 50 East. Take Exit 24 onto Rowe Boulevard and follow signs to the Annapolis Visitor Center.
You can also reach Annapolis by bus or shuttle. The Sky Blue Bus route runs from the International Terminal Bus Stop to Annapolis. You can transfer from the Spa Road stop to other routes, several of which stop near the visitor center. BWI Ground Transportation has information on SuperShuttle and Airport Vans