| Castalla to Blackburn | 1,050.34 mi (1,690.37 km) |
| Castalla to Blackpool | 1,057.41 mi (1,701.74 km) |
| Castalla to Blairgowrie | 1,249.30 mi (2,010.55 km) |
| Castalla to Blandford Forum | 850.16 mi (1,368.20 km) |
| Castalla to Blaydon | 1,131.86 mi (1,821.55 km) |
| Castalla to Bletchley | 925.67 mi (1,489.72 km) |
| Castalla to Bloxwich | 970.60 mi (1,562.03 km) |
| Castalla to Blunsdon Saint Andrew | 900.76 mi (1,449.63 km) |
| Castalla to Blyth | 1,142.74 mi (1,839.06 km) |
| Castalla to Bo'ness | 1,211.18 mi (1,949.21 km) |
| Castalla to Bodmin | 843.63 mi (1,357.70 km) |
| Castalla to Bognor Regis | 841.95 mi (1,354.99 km) |
| Castalla to Bolsover | 1,011.52 mi (1,627.88 km) |
| Castalla to Bolton | 1,038.45 mi (1,671.22 km) |
| Castalla to Bonhill | 1,214.59 mi (1,954.70 km) |
