There are
1,748 mi
from Walnut Creek, CA to Seguin, TX
That's the driving distance. It would take 1 day 6 hours to go from Walnut Creek, California to Seguin, Texas.
The flight distance (direct flight from Walnut Creek, CA to Seguin, TX) is 1,494.19 mi.
1,748 mi = 2,812.79 kms