There are
693 mi
from Bolingbrook, IL to Gaithersburg, MD
That's the driving distance. It would take 13 hours to go from Bolingbrook, Illinois to Gaithersburg, Maryland.
The flight distance (direct flight from Bolingbrook, IL to Gaithersburg, MD) is 597.77 mi.
693 mi = 1,115.27 kms