| Bargoed to Blue Springs (Missouri) | 4,212.64 mi (6,779.58 km) |
| Bargoed to Bluffdale (Utah) | 4,768.33 mi (7,673.88 km) |
| Bargoed to Bluffton (Indiana) | 3,778.56 mi (6,081.00 km) |
| Bargoed to Bluffton (South Carolina) | 4,006.59 mi (6,447.98 km) |
| Bargoed to Blythe (California) | 5,233.23 mi (8,422.07 km) |
| Bargoed to Blytheville (Arkansas) | 4,192.69 mi (6,747.48 km) |
| Bargoed to Boca Raton (Florida) | 4,260.00 mi (6,855.81 km) |
| Bargoed to Boerne (Texas) | 4,852.14 mi (7,808.77 km) |
| Bargoed to Bogalusa (Louisiana) | 4,445.89 mi (7,154.97 km) |
| Bargoed to Boiling Springs (South Carolina) | 3,914.43 mi (6,299.66 km) |
| Bargoed to Boise (Idaho) | 4,735.93 mi (7,621.75 km) |
| Bargoed to Bolingbrook (Illinois) | 3,849.39 mi (6,194.99 km) |
| Bargoed to Bolivar (Missouri) | 4,248.58 mi (6,837.43 km) |
| Bargoed to Bon Air (Virginia) | 3,617.86 mi (5,822.38 km) |
| Bargoed to Bonham (Texas) | 4,556.79 mi (7,333.44 km) |
