| Duluth to Beyne-Heusay | 4,125.85 mi (6,639.91 km) |
| Duluth to Bierbeek | 4,086.18 mi (6,576.06 km) |
| Duluth to Bilzen | 4,110.60 mi (6,615.38 km) |
| Duluth to Binche | 4,083.58 mi (6,571.88 km) |
| Duluth to Bissegem | 4,032.99 mi (6,490.47 km) |
| Duluth to Blankenberge | 4,009.57 mi (6,452.79 km) |
| Duluth to Blegny | 4,126.58 mi (6,641.09 km) |
| Duluth to Bocholt | 4,099.77 mi (6,597.94 km) |
| Duluth to Boechout | 4,063.08 mi (6,538.90 km) |
| Duluth to Bonheiden | 4,069.70 mi (6,549.55 km) |
| Duluth to Boom | 4,061.85 mi (6,536.92 km) |
| Duluth to Boortmeerbeek | 4,072.95 mi (6,554.78 km) |
| Duluth to Borgerhout | 4,059.03 mi (6,532.38 km) |
| Duluth to Borgloon | 4,107.38 mi (6,610.19 km) |
| Duluth to Bornem | 4,056.54 mi (6,528.38 km) |
