There are
1,998 mi
from Half Moon Bay, CA to Moline, IL
That's the driving distance. It would take 1 day 10 hours to go from Half Moon Bay, California to Moline, Illinois.
The flight distance (direct flight from Half Moon Bay, CA to Moline, IL) is 1,714.61 mi.
1,998 mi = 3,216.23 kms