There are
2,788 mi
from Walnut Creek, CA to Manassas, VA
That's the driving distance. It would take 2 days 1 hour to go from Walnut Creek, California to Manassas, Virginia.
The flight distance (direct flight from Walnut Creek, CA to Manassas, VA) is 2,393.19 mi.
2,788 mi = 4,486.32 kms