Miles between Simi Valley, CA and Mattoon, IL

There are
1,977 mi
from Simi Valley, CA to Mattoon, IL

That's the driving distance. It would take 1 day 11 hours to go from Simi Valley, California to Mattoon, Illinois.

The flight distance (direct flight from Simi Valley, CA to Mattoon, IL) is 1,710.24 mi.

1,977 mi = 1.61 kms