Miles between Fontana, CA and San Marcos, CA

There are
78 mi
from Fontana, CA to San Marcos, CA

That's the driving distance. It would take 1 hour 34 mins to go from Fontana, California to San Marcos, California.

The flight distance (direct flight from Fontana, CA to San Marcos, CA) is 67.36 mi.

78 mi = 124.76 kms