Miles between Diamond Bar, CA and Mattoon, IL

There are
1,930 mi
from Diamond Bar, CA to Mattoon, IL

That's the driving distance. It would take 1 day 9 hours to go from Diamond Bar, California to Mattoon, Illinois.

The flight distance (direct flight from Diamond Bar, CA to Mattoon, IL) is 1,664.60 mi.

1,930 mi = 3,106.27 kms