There are
2,767 mi
from Daly City, CA to Martinsburg, WV
That's the driving distance. It would take 2 days to go from Daly City, California to Martinsburg, West Virginia.
The flight distance (direct flight from Daly City, CA to Martinsburg, WV) is 2,382.71 mi.
2,767 mi = 3.22 kms