| Duluth to Buena Park (California) | 1,617.17 mi (2,602.58 km) |
| Duluth to Buenaventura Lakes (Florida) | 1,401.29 mi (2,255.16 km) |
| Duluth to Buffalo (Minnesota) | 137.92 mi (221.96 km) |
| Duluth to Buffalo (New York) | 702.89 mi (1,131.19 km) |
| Duluth to Buffalo Grove (Illinois) | 379.08 mi (610.07 km) |
| Duluth to Buford (Georgia) | 972.51 mi (1,565.11 km) |
| Duluth to Bull Run (Virginia) | 922.10 mi (1,483.97 km) |
| Duluth to Bullhead City (Arizona) | 1,411.70 mi (2,271.91 km) |
| Duluth to Burbank (California) | 1,616.05 mi (2,600.78 km) |
| Duluth to Burbank (Illinois) | 409.26 mi (658.63 km) |
| Duluth to Burien (Washington) | 1,411.58 mi (2,271.73 km) |
| Duluth to Burkburnett (Texas) | 939.61 mi (1,512.15 km) |
| Duluth to Burke (Virginia) | 932.63 mi (1,500.92 km) |
| Duluth to Burke Centre (Virginia) | 930.55 mi (1,497.58 km) |
| Duluth to Burleson (Texas) | 1,022.61 mi (1,645.73 km) |
