There are
2,057 mi
from Sunnyvale, CA to Lake St Louis, MO
That's the driving distance. It would take 1 day 11 hours to go from Sunnyvale, California to Lake St Louis, Missouri.
The flight distance (direct flight from Sunnyvale, CA to Lake St Louis, MO) is 1,694.12 mi.
2,057 mi = 3.22 kms