Miles between Brownsville, TX and San Marcos, TX

There are
318 mi
from Brownsville, TX to San Marcos, TX

That's the driving distance. It would take 6 hours 2 mins to go from Brownsville, Texas to San Marcos, Texas.

The flight distance (direct flight from Brownsville, TX to San Marcos, TX) is 276.43 mi.

318 mi = 512.53 kms