There are
1,731 mi
from Pleasanton, CA to Seguin, TX
That's the driving distance. It would take 1 day 5 hours to go from Pleasanton, California to Seguin, Texas.
The flight distance (direct flight from Pleasanton, CA to Seguin, TX) is 1,479.74 mi.
1,731 mi = 2,785.33 kms