| Watford to Bollullos par del Condado | 1,033.69 mi (1,663.57 km) |
| Watford to Bormujos | 1,025.22 mi (1,649.93 km) |
| Watford to Brenes | 1,010.32 mi (1,625.95 km) |
| Watford to Brunete | 796.31 mi (1,281.54 km) |
| Watford to Bueu | 755.58 mi (1,215.99 km) |
| Watford to Bullas | 942.07 mi (1,516.11 km) |
| Watford to Bunol | 845.61 mi (1,360.88 km) |
| Watford to Burela de Cabo | 641.34 mi (1,032.14 km) |
| Watford to Burgos | 661.93 mi (1,065.28 km) |
| Watford to Burjasot | 839.39 mi (1,350.86 km) |
| Watford to Burriana | 813.05 mi (1,308.48 km) |
| Watford to Cabanaquinta | 638.58 mi (1,027.69 km) |
| Watford to Cabanillas del Campo | 773.06 mi (1,244.13 km) |
| Watford to Cabra | 999.86 mi (1,609.13 km) |
| Watford to Caceres | 888.44 mi (1,429.81 km) |
