| Dubuque to Mouscron | 4,186.08 mi (6,736.85 km) |
| Dubuque to Namur | 4,256.83 mi (6,850.70 km) |
| Dubuque to Neder-Over-Heembeek | 4,222.72 mi (6,795.81 km) |
| Dubuque to Neerpelt | 4,248.23 mi (6,836.87 km) |
| Dubuque to Nevele | 4,187.23 mi (6,738.70 km) |
| Dubuque to Niel | 4,212.75 mi (6,779.77 km) |
| Dubuque to Nieuwpoort | 4,154.77 mi (6,686.46 km) |
| Dubuque to Nijlen | 4,222.39 mi (6,795.29 km) |
| Dubuque to Ninove | 4,211.80 mi (6,778.24 km) |
| Dubuque to Nivelles | 4,232.21 mi (6,811.08 km) |
| Dubuque to Olen | 4,230.29 mi (6,807.99 km) |
| Dubuque to Oostakker | 4,192.69 mi (6,747.49 km) |
| Dubuque to Oosterzele | 4,199.49 mi (6,758.43 km) |
| Dubuque to Oostkamp | 4,171.22 mi (6,712.93 km) |
| Dubuque to Opglabbeek | 4,260.65 mi (6,856.86 km) |
