| Llanelli to Brownsburg (Indiana) | 3,831.65 mi (6,166.45 km) |
| Llanelli to Brownsville (Florida) | 4,254.36 mi (6,846.73 km) |
| Llanelli to Brownsville (Texas) | 4,962.77 mi (7,986.80 km) |
| Llanelli to Brownwood (Texas) | 4,725.77 mi (7,605.39 km) |
| Llanelli to Brunswick (Georgia) | 4,042.63 mi (6,505.99 km) |
| Llanelli to Brunswick (Ohio) | 3,586.43 mi (5,771.80 km) |
| Llanelli to Brushy Creek (Texas) | 4,739.04 mi (7,626.75 km) |
| Llanelli to Bryan (Texas) | 4,677.32 mi (7,527.43 km) |
| Llanelli to Bryant (Arkansas) | 4,323.51 mi (6,958.02 km) |
| Llanelli to Bryn Mawr-Skyway (Washington) | 4,669.91 mi (7,515.50 km) |
| Llanelli to Buckeye (Arizona) | 5,143.25 mi (8,277.26 km) |
| Llanelli to Buckhall (Virginia) | 3,520.58 mi (5,665.82 km) |
| Llanelli to Bucyrus (Ohio) | 3,652.03 mi (5,877.37 km) |
| Llanelli to Buda (Texas) | 4,765.98 mi (7,670.11 km) |
| Llanelli to Buena Park (California) | 5,303.69 mi (8,535.46 km) |
