| Castelnaudary to Blackburn | 748.29 mi (1,204.26 km) |
| Castelnaudary to Blackpool | 759.97 mi (1,223.05 km) |
| Castelnaudary to Blairgowrie | 946.13 mi (1,522.64 km) |
| Castelnaudary to Blandford Forum | 555.47 mi (893.94 km) |
| Castelnaudary to Blaydon | 821.24 mi (1,321.66 km) |
| Castelnaudary to Bletchley | 612.23 mi (985.28 km) |
| Castelnaudary to Bloxwich | 667.61 mi (1,074.41 km) |
| Castelnaudary to Blunsdon Saint Andrew | 598.80 mi (963.68 km) |
| Castelnaudary to Blyth | 830.45 mi (1,336.49 km) |
| Castelnaudary to Bo'ness | 911.24 mi (1,466.50 km) |
| Castelnaudary to Bodmin | 585.25 mi (941.87 km) |
| Castelnaudary to Bognor Regis | 530.30 mi (853.43 km) |
| Castelnaudary to Bolsover | 700.72 mi (1,127.69 km) |
| Castelnaudary to Bolton | 736.44 mi (1,185.18 km) |
| Castelnaudary to Bonhill | 921.40 mi (1,482.85 km) |
