There are
1,750 mi
from Waterloo, IA to San Bernardino, CA
That's the driving distance. It would take 1 day 6 hours to go from Waterloo, Iowa to San Bernardino, California.
The flight distance (direct flight from Waterloo, IA to San Bernardino, CA) is 1,464.50 mi.
1,750 mi = 2,816.44 kms