There are
1,967 mi
from Rockford, IL to Glendale, CA
That's the driving distance. It would take 1 day 10 hours to go from Rockford, Illinois to Glendale, California.
The flight distance (direct flight from Rockford, IL to Glendale, CA) is 1,670.03 mi.
1,967 mi = 1.61 kms