There are
2,086 mi
from Decatur, IL to Lompoc, CA
That's the driving distance. It would take 1 day 12 hours to go from Decatur, Illinois to Lompoc, California.
The flight distance (direct flight from Decatur, IL to Lompoc, CA) is 1,760.16 mi.
2,086 mi = 3,357.79 kms