There are
1,217 mi
from Greeley, CO to Lake Oswego, OR
That's the driving distance. It would take 21 hours 9 mins to go from Greeley, Colorado to Lake Oswego, Oregon.
The flight distance (direct flight from Greeley, CO to Lake Oswego, OR) is 969.59 mi.
1,217 mi = 1.61 kms