There are
2,387 mi
from Boise, ID to New Carrollton, MD
That's the driving distance. It would take 1 day 17 hours to go from Boise, Idaho to New Carrollton, Maryland.
The flight distance (direct flight from Boise, ID to New Carrollton, MD) is 2,048.72 mi.
2,387 mi = 3.22 kms