Miles between St Louis, MO and Rock Springs, WY

There are
1,140 mi
from St Louis, MO to Rock Springs, WY

That's the driving distance. It would take 20 hours 4 mins to go from St Louis, Missouri to Rock Springs, Wyoming.

The flight distance (direct flight from St Louis, MO to Rock Springs, WY) is 1,022.65 mi.

1,140 mi = 1.61 kms