There are
1,827 mi
from Montebello, CA to Florissant, MO
That's the driving distance. It would take 1 day 7 hours to go from Montebello, California to Florissant, Missouri.
The flight distance (direct flight from Montebello, CA to Florissant, MO) is 1,573.84 mi.
1,827 mi = 2,940.59 kms