There are
1,901 mi
from Waterloo, IA to Danville, CA
That's the driving distance. It would take 1 day 8 hours to go from Waterloo, Iowa to Danville, California.
The flight distance (direct flight from Waterloo, IA to Danville, CA) is 1,590.43 mi.
1,901 mi = 3,058.79 kms