Miles between Great Falls, MT and Spencer, IA

There are
987 mi
from Great Falls, MT to Spencer, IA

That's the driving distance. It would take 17 hours 25 mins to go from Great Falls, Montana to Spencer, Iowa.

The flight distance (direct flight from Great Falls, MT to Spencer, IA) is 838.65 mi.

987 mi = 1,589.16 kms