There are
1,935 mi
from Pomona, CA to Sycamore, IL
That's the driving distance. It would take 1 day 9 hours to go from Pomona, California to Sycamore, Illinois.
The flight distance (direct flight from Pomona, CA to Sycamore, IL) is 1,664.71 mi.
1,935 mi = 1.61 kms