| Portici to Azcoitia | 868.88 mi (1,398.33 km) |
| Portici to Azpeitia | 866.63 mi (1,394.70 km) |
| Portici to Azuqueca de Henares | 921.13 mi (1,482.41 km) |
| Portici to Badajoz | 1,135.79 mi (1,827.87 km) |
| Portici to Badalona | 631.06 mi (1,015.59 km) |
| Portici to Baena | 1,020.86 mi (1,642.91 km) |
| Portici to Baeza | 968.93 mi (1,559.35 km) |
| Portici to Bailen | 982.53 mi (1,581.22 km) |
| Portici to Balaguer | 704.99 mi (1,134.58 km) |
| Portici to Banolas | 605.45 mi (974.38 km) |
| Portici to Baranain | 834.35 mi (1,342.76 km) |
| Portici to Barbadanes | 1,151.43 mi (1,853.05 km) |
| Portici to Barbastro | 740.31 mi (1,191.41 km) |
| Portici to Barcelona | 634.00 mi (1,020.33 km) |
| Portici to Bargas | 966.51 mi (1,555.44 km) |
