There are
1,985 mi
from Elgin, IL to Buena Park, CA
That's the driving distance. It would take 1 day 10 hours to go from Elgin, Illinois to Buena Park, California.
The flight distance (direct flight from Elgin, IL to Buena Park, CA) is 1,704.33 mi.
1,985 mi = 1.61 kms