| Portet-sur-Garonne to Mouscron | 505.43 mi (813.42 km) |
| Portet-sur-Garonne to Namur | 506.65 mi (815.37 km) |
| Portet-sur-Garonne to Neder-Over-Heembeek | 528.46 mi (850.48 km) |
| Portet-sur-Garonne to Neerpelt | 564.92 mi (909.15 km) |
| Portet-sur-Garonne to Nevele | 528.57 mi (850.64 km) |
| Portet-sur-Garonne to Niel | 542.25 mi (872.67 km) |
| Portet-sur-Garonne to Nieuwpoort | 528.49 mi (850.52 km) |
| Portet-sur-Garonne to Nijlen | 549.46 mi (884.27 km) |
| Portet-sur-Garonne to Ninove | 519.74 mi (836.45 km) |
| Portet-sur-Garonne to Nivelles | 506.66 mi (815.40 km) |
| Portet-sur-Garonne to Olen | 551.01 mi (886.76 km) |
| Portet-sur-Garonne to Oostakker | 535.07 mi (861.11 km) |
| Portet-sur-Garonne to Oosterzele | 525.30 mi (845.39 km) |
| Portet-sur-Garonne to Oostkamp | 534.22 mi (859.74 km) |
| Portet-sur-Garonne to Opglabbeek | 555.53 mi (894.05 km) |
