| Llantwit Major to Bountiful (Utah) | 4,749.31 mi (7,643.27 km) |
| Llantwit Major to Bourbonnais (Illinois) | 3,863.29 mi (6,217.37 km) |
| Llantwit Major to Bowie (Maryland) | 3,514.86 mi (5,656.62 km) |
| Llantwit Major to Bowling Green (Kentucky) | 4,001.81 mi (6,440.29 km) |
| Llantwit Major to Bowling Green (Ohio) | 3,688.12 mi (5,935.46 km) |
| Llantwit Major to Box Elder (South Dakota) | 4,284.59 mi (6,895.39 km) |
| Llantwit Major to Boynton Beach (Florida) | 4,243.78 mi (6,829.70 km) |
| Llantwit Major to Bozeman (Montana) | 4,469.34 mi (7,192.71 km) |
| Llantwit Major to Bradenton (Florida) | 4,301.98 mi (6,923.36 km) |
| Llantwit Major to Bradfordville (Florida) | 4,218.08 mi (6,788.35 km) |
| Llantwit Major to Bradley (Illinois) | 3,862.86 mi (6,216.68 km) |
| Llantwit Major to Bradley Gardens (New Jersey) | 3,359.08 mi (5,405.92 km) |
| Llantwit Major to Brainerd (Minnesota) | 3,864.66 mi (6,219.57 km) |
| Llantwit Major to Brambleton (Virginia) | 3,546.45 mi (5,707.47 km) |
| Llantwit Major to Brandermill (Virginia) | 3,620.50 mi (5,826.63 km) |
