There are
2,756 mi
from Vacaville, CA to Takoma Park, MD
That's the driving distance. It would take 2 days to go from Vacaville, California to Takoma Park, Maryland.
The flight distance (direct flight from Vacaville, CA to Takoma Park, MD) is 2,401.73 mi.
2,756 mi = 3.22 kms