There are
2,044 mi
from Oceanside, CA to Rantoul, IL
That's the driving distance. It would take 1 day 11 hours to go from Oceanside, California to Rantoul, Illinois.
The flight distance (direct flight from Oceanside, CA to Rantoul, IL) is 1,682 mi.
2,044 mi = 3.22 kms