There are
1,564 mi
from Harlingen, TX to Fergus Falls, MN
That's the driving distance. It would take 1 day 3 hours to go from Harlingen, Texas to Fergus Falls, Minnesota.
The flight distance (direct flight from Harlingen, TX to Fergus Falls, MN) is 1,391.11 mi.
1,564 mi = 2,516.65 kms