| Northolt to Borgosatollo | 640.57 mi (1,030.90 km) |
| Northolt to Borgosesia | 563.01 mi (906.07 km) |
| Northolt to Boscoreale | 1,025.81 mi (1,650.89 km) |
| Northolt to Boscotrecase | 1,024.37 mi (1,648.57 km) |
| Northolt to Botticino Sera | 637.57 mi (1,026.06 km) |
| Northolt to Bovalino Marina | 1,224.26 mi (1,970.25 km) |
| Northolt to Boves | 617.93 mi (994.46 km) |
| Northolt to Boville Ernica | 945.14 mi (1,521.06 km) |
| Northolt to Bovisio Masciago | 596.79 mi (960.44 km) |
| Northolt to Bovolone | 682.55 mi (1,098.46 km) |
| Northolt to Bra | 605.45 mi (974.38 km) |
| Northolt to Bracciano | 879.76 mi (1,415.83 km) |
| Northolt to Brandizzo | 578.67 mi (931.28 km) |
| Northolt to Breganze | 677.15 mi (1,089.77 km) |
| Northolt to Brembate | 610.98 mi (983.29 km) |
