| Southampton to Bonhill | 374.28 mi (602.35 km) |
| Southampton to Bonnyrigg | 350.58 mi (564.20 km) |
| Southampton to Bootle | 188.10 mi (302.72 km) |
| Southampton to Borehamwood | 71.53 mi (115.11 km) |
| Southampton to Boscombe | 22.64 mi (36.43 km) |
| Southampton to Boston | 154.77 mi (249.07 km) |
| Southampton to Bottesford | 185.68 mi (298.82 km) |
| Southampton to Bourne | 136.17 mi (219.14 km) |
| Southampton to Bournemouth | 24.30 mi (39.11 km) |
| Southampton to Bournville | 107.96 mi (173.75 km) |
| Southampton to Bovingdon | 67.96 mi (109.37 km) |
| Southampton to Bowdon | 175.70 mi (282.76 km) |
| Southampton to Boxley | 88.88 mi (143.03 km) |
| Southampton to Brackley | 78.82 mi (126.85 km) |
| Southampton to Bracknell | 45.44 mi (73.13 km) |
