Duluth International Airport serves the city and surrounding region. Nearby municipal airports are Duluth Sky Harbor, on Minnesota Point, and the Richard I. Bong Memorial Airport in Superior.
Duluth is a major shipping port for taconite. The Canadian National Railway (former Duluth, Missabe and Iron Range Railway) operates taconite-hauling trains in the area. Duluth port facilities also handle substantial amounts of grain, limestone, dry bulk cement powder, rock salt, bentonite clay, wind turbine components, and a wide variety of oversized industrial machinery which require especially high and wide road and rail clearances to reach their destinations in the interior of North America.
Duluth is also served by the BNSF Railway, the Canadian Pacific Railway, and the Union Pacific Railroad.
The local bus system is run by the Duluth Transit Authority, which services not only the Duluth area, but Superior, WI, as well. The DTA runs a system of buses manufactured by Gillig, including new hybrids.
Duluth is also serviced by Greyhound Lines and Jefferson Lines, with daily service to the Twin Cities.