There are
2,061 mi
from Brownsville, TX to Susanville, CA
That's the driving distance. It would take 1 day 13 hours to go from Brownsville, Texas to Susanville, California.
The flight distance (direct flight from Brownsville, TX to Susanville, CA) is 1,664.40 mi.
2,061 mi = 3,316.69 kms