ferryboat

matkustajalautta, lautta puhekieltä A boat used to ferry passengers, vehicles, or goods across open water, especially one that runs to a regular schedule
1893, James Wells Goodwin, Peyton Boyle, Robert Desty, The Federal reporter, Vol. 54, http://books.google.com/books?id=Ehg4AAAAIAAJ&pg=PA206&dq=ferryboat&hl=en&sa=X&ei=55yIT4OLGs3RiALT0tmoCA&ved=0CE0Q6AEwATgK page 206

He insists that it is practically undisputed that, when the ferryboat crossed the bow of the tug to make her slip, she crossed at a distance of at least 300 feet away

The ferryboat "Argentina" rides toward Golden Gate, her ocean-going prow slicing the waves.

It was on this vessel that the founder of the second largest ferryboat company on Puget Sound...