| Dubuque to Barmstedt | 4,299.90 mi (6,920.02 km) |
| Dubuque to Barntrup | 4,349.38 mi (6,999.65 km) |
| Dubuque to Barsbuttel | 4,321.90 mi (6,955.43 km) |
| Dubuque to Barsinghausen | 4,349.30 mi (6,999.52 km) |
| Dubuque to Barssel | 4,255.41 mi (6,848.43 km) |
| Dubuque to Barth | 4,373.34 mi (7,038.20 km) |
| Dubuque to Bassum | 4,301.56 mi (6,922.69 km) |
| Dubuque to Baunatal | 4,389.02 mi (7,063.44 km) |
| Dubuque to Bautzen | 4,564.48 mi (7,345.83 km) |
| Dubuque to Bayreuth | 4,519.08 mi (7,272.76 km) |
| Dubuque to Bebra | 4,413.76 mi (7,103.26 km) |
| Dubuque to Beckingen | 4,366.01 mi (7,026.41 km) |
| Dubuque to Beckum | 4,320.85 mi (6,953.74 km) |
| Dubuque to Bedburg | 4,254.74 mi (6,847.34 km) |
| Dubuque to Bedburg | 4,297.89 mi (6,916.78 km) |
