There are
1,706 mi
from Sunnyvale, CA to Garland, TX
That's the driving distance. It would take 1 day 6 hours to go from Sunnyvale, California to Garland, Texas.
The flight distance (direct flight from Sunnyvale, CA to Garland, TX) is 1,462.87 mi.
1,706 mi = 2,745.74 kms