There are
1,551 mi
from San Mateo, CA to Grand Island, NE
That's the driving distance. It would take 1 day 2 hours to go from San Mateo, California to Grand Island, Nebraska.
The flight distance (direct flight from San Mateo, CA to Grand Island, NE) is 1,299.97 mi.
1,551 mi = 1.61 kms