There are
986 mi
from San Leandro, CA to Missoula, MT
That's the driving distance. It would take 19 hours 9 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