AIRPORT
http://www.bwiairport.com/

Closest airport is Baltimore/Washington International Thurgood Marshall Airport (BWI)

CHARM CITY CIRCULATOR
http://www.charmcitycirculator.com

Fast, friendly and free bus. Rides every 10 minutes, every 15 minutes for the Banner Route. 

TAXI/ LIGHT RAIL
http://mta.maryland.gov/light-rail

From BWI to Inner Harbor.  Light Rail – from BWI to downtown.  You can also catch the light rail from BWI airport to downtown Baltimore.

WATER TAXI
http://www.baltimorewatertaxi.com/

Located in different spots along the harbor with stops at different points along the harbor.