There are
1,138 mi
from Rockville, MD to Fairmont, MN
That's the driving distance. It would take 21 hours 6 mins to go from Rockville, Maryland to Fairmont, Minnesota.
The flight distance (direct flight from Rockville, MD to Fairmont, MN) is 949.21 mi.
1,138 mi = 1,831.99 kms