There are
2,414 mi
from Dayton, OH to Sunnyvale, CA
That's the driving distance. It would take 1 day 18 hours to go from Dayton, Ohio to Sunnyvale, California.
The flight distance (direct flight from Dayton, OH to Sunnyvale, CA) is 2,036.01 mi.
2,414 mi = 3.22 kms