| Llantrisant to Bonhill | 310.67 mi (499.97 km) |
| Llantrisant to Bonnyrigg | 299.57 mi (482.11 km) |
| Llantrisant to Bootle | 132.53 mi (213.29 km) |
| Llantrisant to Borehamwood | 133.39 mi (214.67 km) |
| Llantrisant to Boscombe | 87.26 mi (140.44 km) |
| Llantrisant to Boston | 172.90 mi (278.26 km) |
| Llantrisant to Bottesford | 179.40 mi (288.71 km) |
| Llantrisant to Bourne | 152.71 mi (245.76 km) |
| Llantrisant to Bournemouth | 86.18 mi (138.69 km) |
| Llantrisant to Bournville | 86.69 mi (139.51 km) |
| Llantrisant to Bovingdon | 122.36 mi (196.92 km) |
| Llantrisant to Bowdon | 133.64 mi (215.08 km) |
| Llantrisant to Boxley | 169.59 mi (272.93 km) |
| Llantrisant to Brackley | 101.06 mi (162.64 km) |
| Llantrisant to Bracknell | 113.33 mi (182.39 km) |
