I need to know if there is any public transportation from Baltimore to Six Flags America?

Question

I live close to Baltimore and I don't always have a car.

Answer 1

YES

Answer 2

The easiest way is to take the MARC Train to New Carrollton Metro Station and take the Orange Line to the Stadium Armory stop and transfer to the Blue Line to Largo Town Center. From there take the C21/22/26/29 and it will drop you right in front of Six Flags.  Be warned, the MARC trains hours are shorter on the weekends and you might have to find an alternate way home. Either way have fun!!