There are
909 mi
from Iowa City, IA to New Carrollton, MD
That's the driving distance. It would take 17 hours 2 mins to go from Iowa City, Iowa to New Carrollton, Maryland.
The flight distance (direct flight from Iowa City, IA to New Carrollton, MD) is 792.83 mi.
909 mi = 1,463.37 kms