| Duluth to Firestone (Colorado) | 786.96 mi (1,266.48 km) |
| Duluth to Fish Hawk (Florida) | 1,413.97 mi (2,275.56 km) |
| Duluth to Fishers (Indiana) | 563.49 mi (906.86 km) |
| Duluth to Fitchburg (Massachusetts) | 1,036.09 mi (1,667.43 km) |
| Duluth to Fitchburg (Wisconsin) | 293.58 mi (472.46 km) |
| Duluth to Five Corners (Washington) | 1,447.44 mi (2,329.43 km) |
| Duluth to Five Forks (South Carolina) | 974.30 mi (1,567.98 km) |
| Duluth to Flagstaff (Arizona) | 1,287.52 mi (2,072.06 km) |
| Duluth to Flat Rock (Michigan) | 543.31 mi (874.38 km) |
| Duluth to Fleming Island (Florida) | 1,280.34 mi (2,060.50 km) |
| Duluth to Flint (Michigan) | 487.57 mi (784.67 km) |
| Duluth to Floral Park (New York) | 1,007.56 mi (1,621.51 km) |
| Duluth to Florence (Alabama) | 857.48 mi (1,379.99 km) |
| Duluth to Florence (Arizona) | 1,386.59 mi (2,231.50 km) |
| Duluth to Florence (Kentucky) | 657.55 mi (1,058.22 km) |
