There are
778 mi
from Oceanside, CA to Brigham City, UT
That's the driving distance. It would take 13 hours 42 mins to go from Oceanside, California to Brigham City, Utah.
The flight distance (direct flight from Oceanside, CA to Brigham City, UT) is 645.23 mi.
778 mi = 1,252.84 kms