There are
1,967 mi
from Decatur, IL to La Palma, CA
That's the driving distance. It would take 1 day 10 hours to go from Decatur, Illinois to La Palma, California.
The flight distance (direct flight from Decatur, IL to La Palma, CA) is 1,653.05 mi.
1,967 mi = 1.61 kms