There are
2,133 mi
from San Leandro, CA to Mattoon, IL
That's the driving distance. It would take 1 day 13 hours to go from San Leandro, California to Mattoon, Illinois.
The flight distance (direct flight from San Leandro, CA to Mattoon, IL) is 1,817.48 mi.
2,133 mi = 3.22 kms