There are
1,170 mi
from Sunnyvale, CA to Horizon City, TX
That's the driving distance. It would take 21 hours 5 mins to go from Sunnyvale, California to Horizon City, Texas.
The flight distance (direct flight from Sunnyvale, CA to Horizon City, TX) is 980.98 mi.
1,170 mi = 1.61 kms