| Portalegre to Beyne-Heusay | 1,005.69 mi (1,618.51 km) |
| Portalegre to Bierbeek | 990.50 mi (1,594.06 km) |
| Portalegre to Bilzen | 1,014.18 mi (1,632.17 km) |
| Portalegre to Binche | 950.65 mi (1,529.92 km) |
| Portalegre to Bissegem | 946.88 mi (1,523.86 km) |
| Portalegre to Blankenberge | 971.21 mi (1,563.01 km) |
| Portalegre to Blegny | 1,010.71 mi (1,626.59 km) |
| Portalegre to Bocholt | 1,031.52 mi (1,660.07 km) |
| Portalegre to Boechout | 999.14 mi (1,607.97 km) |
| Portalegre to Bonheiden | 994.35 mi (1,600.25 km) |
| Portalegre to Boom | 992.37 mi (1,597.06 km) |
| Portalegre to Boortmeerbeek | 992.65 mi (1,597.52 km) |
| Portalegre to Borgerhout | 1,001.25 mi (1,611.36 km) |
| Portalegre to Borgloon | 1,005.76 mi (1,618.62 km) |
| Portalegre to Bornem | 989.59 mi (1,592.59 km) |
