There are
2,806 mi
from Walnut Creek, CA to Bowie, MD
That's the driving distance. It would take 2 days 1 hour to go from Walnut Creek, California to Bowie, Maryland.
The flight distance (direct flight from Walnut Creek, CA to Bowie, MD) is 2,425.74 mi.
2,806 mi = 4,515.84 kms