There are
1,812 mi
from Fargo, ND to San Marcos, CA
That's the driving distance. It would take 1 day 7 hours to go from Fargo, North Dakota to San Marcos, California.
The flight distance (direct flight from Fargo, ND to San Marcos, CA) is 1,428.54 mi.
1,812 mi = 1.61 kms