There are
1,856 mi
from Waterloo, IA to La Mesa, CA
That's the driving distance. It would take 1 day 8 hours to go from Waterloo, Iowa to La Mesa, California.
The flight distance (direct flight from Waterloo, IA to La Mesa, CA) is 1,500.82 mi.
1,856 mi = 2,986.82 kms