| Duluth to Baraboo (Wisconsin) | 256.66 mi (413.05 km) |
| Duluth to Barberton (Ohio) | 657.77 mi (1,058.57 km) |
| Duluth to Bardstown (Kentucky) | 706.33 mi (1,136.73 km) |
| Duluth to Barrington (Illinois) | 375.65 mi (604.55 km) |
| Duluth to Barstow (California) | 1,530.32 mi (2,462.82 km) |
| Duluth to Bartlesville (Oklahoma) | 720.61 mi (1,159.71 km) |
| Duluth to Bartlett (Illinois) | 383.91 mi (617.84 km) |
| Duluth to Bartlett (Tennessee) | 806.49 mi (1,297.92 km) |
| Duluth to Bartow (Florida) | 1,419.94 mi (2,285.17 km) |
| Duluth to Batavia (Illinois) | 389.43 mi (626.72 km) |
| Duluth to Batavia (New York) | 730.22 mi (1,175.17 km) |
| Duluth to Batesville (Arkansas) | 760.97 mi (1,224.66 km) |
| Duluth to Baton Rouge (Louisiana) | 1,129.83 mi (1,818.28 km) |
| Duluth to Battle Creek (Michigan) | 459.56 mi (739.59 km) |
| Duluth to Battle Ground (Washington) | 1,444.46 mi (2,324.63 km) |
