| Llanelli to Black Forest (Colorado) | 4,560.83 mi (7,339.94 km) |
| Llanelli to Blackfoot (Idaho) | 4,606.59 mi (7,413.59 km) |
| Llanelli to Blackhawk (California) | 5,205.61 mi (8,377.62 km) |
| Llanelli to Blacksburg (Virginia) | 3,710.83 mi (5,972.01 km) |
| Llanelli to Blackwells Mills (New Jersey) | 3,326.45 mi (5,353.40 km) |
| Llanelli to Blaine (Minnesota) | 3,847.54 mi (6,192.02 km) |
| Llanelli to Bloomingdale (Florida) | 4,236.92 mi (6,818.66 km) |
| Llanelli to Bloomingdale (Illinois) | 3,801.58 mi (6,118.04 km) |
| Llanelli to Bloomington (California) | 5,272.11 mi (8,484.64 km) |
| Llanelli to Bloomington (Illinois) | 3,903.52 mi (6,282.11 km) |
| Llanelli to Bloomington (Indiana) | 3,868.26 mi (6,225.37 km) |
| Llanelli to Bloomington (Minnesota) | 3,866.98 mi (6,223.31 km) |
| Llanelli to Bloomsburg (Pennsylvania) | 3,380.19 mi (5,439.89 km) |
| Llanelli to Blue Ash (Ohio) | 3,778.90 mi (6,081.54 km) |
| Llanelli to Blue Island (Illinois) | 3,799.04 mi (6,113.96 km) |
