Miles between San Marcos, CA and Key Biscayne, FL

There are
2,673 mi
from San Marcos, CA to Key Biscayne, FL

That's the driving distance. It would take 1 day 23 hours to go from San Marcos, California to Key Biscayne, Florida.

The flight distance (direct flight from San Marcos, CA to Key Biscayne, FL) is 2,273.31 mi.

2,673 mi = 3.22 kms