There are
1,979 mi
from St Louis, MO to Oroville, CA
That's the driving distance. It would take 1 day 10 hours to go from St Louis, Missouri to Oroville, California.
The flight distance (direct flight from St Louis, MO to Oroville, CA) is 1,674.63 mi.
1,979 mi = 1.61 kms