There are
2,704 mi
from Oceanside, CA to Hyattsville, MD
That's the driving distance. It would take 1 day 23 hours to go from Oceanside, California to Hyattsville, Maryland.
The flight distance (direct flight from Oceanside, CA to Hyattsville, MD) is 2,273.81 mi.
2,704 mi = 3.22 kms