Miles between Spokane, WA and Duncan, OK

There are
1,749 mi
from Spokane, WA to Duncan, OK

That's the driving distance. It would take 1 day 6 hours to go from Spokane, Washington to Duncan, Oklahoma.

The flight distance (direct flight from Spokane, WA to Duncan, OK) is 1,354.71 mi.

1,749 mi = 1.61 kms