There are
1,812 mi
from Sioux Falls, SD to Ashland, OR
That's the driving distance. It would take 1 day 7 hours to go from Sioux Falls, South Dakota to Ashland, Oregon.
The flight distance (direct flight from Sioux Falls, SD to Ashland, OR) is 1,314.93 mi.
1,812 mi = 1.61 kms