There are
1,835 mi
from San Clemente, CA to Willmar, MN
That's the driving distance. It would take 1 day 8 hours to go from San Clemente, California to Willmar, Minnesota.
The flight distance (direct flight from San Clemente, CA to Willmar, MN) is 1,444.52 mi.
1,835 mi = 2,953.44 kms