Miles between St Louis, MO and Portsmouth, NH

There are
1,231 mi
from St Louis, MO to Portsmouth, NH

That's the driving distance. It would take 23 hours 22 mins to go from St Louis, Missouri to Portsmouth, New Hampshire.

The flight distance (direct flight from St Louis, MO to Portsmouth, NH) is 1,058.46 mi.

1,231 mi = 1.61 kms