There are
1,323 mi
from New Haven, CT to Maryville, MO
That's the driving distance. It would take 1 day 1 hour to go from New Haven, Connecticut to Maryville, Missouri.
The flight distance (direct flight from New Haven, CT to Maryville, MO) is 1,146.16 mi.
1,323 mi = 1.61 kms