| Portet-sur-Garonne to Benevento | 702.12 mi (1,129.95 km) |
| Portet-sur-Garonne to Bergamo | 433.08 mi (696.98 km) |
| Portet-sur-Garonne to Bernalda | 812.28 mi (1,307.24 km) |
| Portet-sur-Garonne to Bertinoro | 536.01 mi (862.62 km) |
| Portet-sur-Garonne to Besana in Brianza | 415.43 mi (668.57 km) |
| Portet-sur-Garonne to Besozzo | 391.06 mi (629.36 km) |
| Portet-sur-Garonne to Biancavilla | 813.07 mi (1,308.51 km) |
| Portet-sur-Garonne to Biassono | 413.23 mi (665.03 km) |
| Portet-sur-Garonne to Bibbiano | 456.26 mi (734.28 km) |
| Portet-sur-Garonne to Bibbiena | 520.61 mi (837.84 km) |
| Portet-sur-Garonne to Biella | 356.98 mi (574.50 km) |
| Portet-sur-Garonne to Bisceglie | 785.36 mi (1,263.92 km) |
| Portet-sur-Garonne to Bisignano | 816.48 mi (1,314.00 km) |
| Portet-sur-Garonne to Bitetto | 801.78 mi (1,290.34 km) |
| Portet-sur-Garonne to Bitonto | 796.75 mi (1,282.25 km) |
