| Portugalete to Belvedere Marittimo | 1,008.27 mi (1,622.66 km) |
| Portugalete to Benevento | 921.45 mi (1,482.94 km) |
| Portugalete to Bergamo | 645.67 mi (1,039.11 km) |
| Portugalete to Bernalda | 1,030.85 mi (1,658.99 km) |
| Portugalete to Bertinoro | 757.57 mi (1,219.19 km) |
| Portugalete to Besana in Brianza | 627.39 mi (1,009.68 km) |
| Portugalete to Besozzo | 600.41 mi (966.27 km) |
| Portugalete to Biancavilla | 1,015.67 mi (1,634.56 km) |
| Portugalete to Biassono | 625.75 mi (1,007.05 km) |
| Portugalete to Bibbiano | 675.99 mi (1,087.90 km) |
| Portugalete to Bibbiena | 742.92 mi (1,195.61 km) |
| Portugalete to Biella | 567.95 mi (914.02 km) |
| Portugalete to Bisceglie | 1,005.97 mi (1,618.95 km) |
| Portugalete to Bisignano | 1,031.46 mi (1,659.98 km) |
| Portugalete to Bitetto | 1,022.04 mi (1,644.81 km) |
