There are
2,067 mi
from Sunnyvale, CA to St Peters, MO
That's the driving distance. It would take 1 day 11 hours to go from Sunnyvale, California to St Peters, Missouri.
The flight distance (direct flight from Sunnyvale, CA to St Peters, MO) is 1,703.93 mi.
2,067 mi = 3.22 kms