Miles between San Marcos, CA and Herndon, VA

There are
2,686 mi
from San Marcos, CA to Herndon, VA

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

The flight distance (direct flight from San Marcos, CA to Herndon, VA) is 2,240.04 mi.

2,686 mi = 3.22 kms