There are
986 mi
from San Leandro, CA to Missoula, MT
That's the driving distance. It would take 19 hours 10 mins to go from San Leandro, California to Missoula, Montana.
The flight distance (direct flight from San Leandro, CA to Missoula, MT) is 754.94 mi.
986 mi = 1,586.60 kms