| Portimao to Bitonto | 1,374.44 mi (2,211.94 km) |
| Portimao to Bitritto | 1,381.99 mi (2,224.09 km) |
| Portimao to Bollate | 1,081.06 mi (1,739.80 km) |
| Portimao to Bologna | 1,153.13 mi (1,855.78 km) |
| Portimao to Bolzano | 1,206.23 mi (1,941.25 km) |
| Portimao to Bomporto | 1,144.43 mi (1,841.79 km) |
| Portimao to Bonate di Sopra | 1,104.64 mi (1,777.75 km) |
| Portimao to Bondeno | 1,165.66 mi (1,875.95 km) |
| Portimao to Bordighera | 965.39 mi (1,553.65 km) |
| Portimao to Borgaro Torinese | 1,005.06 mi (1,617.49 km) |
| Portimao to Borgo a Buggiano | 1,110.98 mi (1,787.94 km) |
| Portimao to Borgo San Dalmazzo | 972.56 mi (1,565.18 km) |
| Portimao to Borgo San Lorenzo | 1,143.18 mi (1,839.78 km) |
| Portimao to Borgomanero | 1,057.84 mi (1,702.43 km) |
| Portimao to Borgoricco | 1,206.30 mi (1,941.35 km) |
