There are
1,889 mi
from Pomona, CA to Chatham, IL
That's the driving distance. It would take 1 day 8 hours to go from Pomona, California to Chatham, Illinois.
The flight distance (direct flight from Pomona, CA to Chatham, IL) is 1,591.19 mi.
1,889 mi = 3,040.40 kms