Miles between St Louis, MO and Ammon, ID

There are
1,397 mi
from St Louis, MO to Ammon, ID

That's the driving distance. It would take 1 day 1 hour to go from St Louis, Missouri to Ammon, Idaho.

The flight distance (direct flight from St Louis, MO to Ammon, ID) is 1,178.66 mi.

1,397 mi = 1.61 kms