| Belfast to Blackburn | 151.25 mi (243.41 km) |
| Belfast to Blackpool | 128.30 mi (206.47 km) |
| Belfast to Blairgowrie | 170.93 mi (275.08 km) |
| Belfast to Blandford Forum | 302.57 mi (486.94 km) |
| Belfast to Blaydon | 169.67 mi (273.06 km) |
| Belfast to Bletchley | 279.89 mi (450.44 km) |
| Belfast to Bloxwich | 211.29 mi (340.04 km) |
| Belfast to Blunsdon Saint Andrew | 268.36 mi (431.89 km) |
| Belfast to Blyth | 179.35 mi (288.64 km) |
| Belfast to Bo'ness | 134.01 mi (215.68 km) |
| Belfast to Bodmin | 289.88 mi (466.52 km) |
| Belfast to Bognor Regis | 343.10 mi (552.17 km) |
| Belfast to Bolsover | 211.14 mi (339.80 km) |
| Belfast to Bolton | 158.35 mi (254.84 km) |
| Belfast to Bonhill | 109.79 mi (176.68 km) |
