| Portet-sur-Garonne to Bitritto | 805.58 mi (1,296.45 km) |
| Portet-sur-Garonne to Bollate | 404.57 mi (651.10 km) |
| Portet-sur-Garonne to Bologna | 498.03 mi (801.50 km) |
| Portet-sur-Garonne to Bolzano | 527.21 mi (848.45 km) |
| Portet-sur-Garonne to Bomporto | 484.44 mi (779.62 km) |
| Portet-sur-Garonne to Bonate di Sopra | 428.09 mi (688.94 km) |
| Portet-sur-Garonne to Bondeno | 504.34 mi (811.65 km) |
| Portet-sur-Garonne to Bordighera | 313.42 mi (504.41 km) |
| Portet-sur-Garonne to Borgaro Torinese | 328.33 mi (528.39 km) |
| Portet-sur-Garonne to Borgo a Buggiano | 466.31 mi (750.46 km) |
| Portet-sur-Garonne to Borgo San Dalmazzo | 307.49 mi (494.86 km) |
| Portet-sur-Garonne to Borgo San Lorenzo | 498.66 mi (802.51 km) |
| Portet-sur-Garonne to Borgomanero | 378.32 mi (608.85 km) |
| Portet-sur-Garonne to Borgoricco | 537.76 mi (865.44 km) |
| Portet-sur-Garonne to Borgosatollo | 455.53 mi (733.10 km) |
