| Dubuque to Borsbeek | 4,215.09 mi (6,783.52 km) |
| Dubuque to Boussu | 4,218.67 mi (6,789.30 km) |
| Dubuque to Braine-l'Alleud | 4,230.56 mi (6,808.43 km) |
| Dubuque to Braine-le-Chateau | 4,226.60 mi (6,802.06 km) |
| Dubuque to Braine-le-Comte | 4,224.84 mi (6,799.22 km) |
| Dubuque to Brasschaat | 4,211.81 mi (6,778.26 km) |
| Dubuque to Brecht | 4,214.89 mi (6,783.22 km) |
| Dubuque to Bredene | 4,158.79 mi (6,692.92 km) |
| Dubuque to Bree | 4,257.46 mi (6,851.73 km) |
| Dubuque to Bruges | 4,168.81 mi (6,709.05 km) |
| Dubuque to Brussels | 4,223.60 mi (6,797.22 km) |
| Dubuque to Buggenhout | 4,212.26 mi (6,778.98 km) |
| Dubuque to Chapelle-lez-Herlaimont | 4,235.38 mi (6,816.19 km) |
| Dubuque to Charleroi | 4,243.43 mi (6,829.14 km) |
| Dubuque to Chatelet | 4,246.50 mi (6,834.08 km) |
