There are
1,724 mi
from Sunnyvale, CA to Forney, TX
That's the driving distance. It would take 1 day 6 hours to go from Sunnyvale, California to Forney, Texas.
The flight distance (direct flight from Sunnyvale, CA to Forney, TX) is 1,475.80 mi.
1,724 mi = 1.61 kms