There are
1,988 mi
from Upland, CA to Deerfield, IL
That's the driving distance. It would take 1 day 10 hours to go from Upland, California to Deerfield, Illinois.
The flight distance (direct flight from Upland, CA to Deerfield, IL) is 1,702.76 mi.
1,988 mi = 1.61 kms