Flight
BWI has car rentals and is a relatively short drive away from the venue. Other farther, yet still drivable, airports include Philadelphia International Airport (PHL), Ronald Reagan Washington National Airport (DCA), and Washington Dulles International Airport (IAD).
Train
There is an Amtrak station in downtown Baltimore that is also not far from the venue. This is another option to consider if you're coming from New York, Washington D.C., Chicago, Philadelphia, Boston, or Newark.