There are
818 mi
from Loveland, CO to Siloam Springs, AR
That's the driving distance. It would take 14 hours 12 mins to go from Loveland, Colorado to Siloam Springs, Arkansas.
The flight distance (direct flight from Loveland, CO to Siloam Springs, AR) is 640.45 mi.
818 mi = 1,316.97 kms