| Castagneto Carducci to Black Forest (Colorado) | 5,464.50 mi (8,794.26 km) |
| Castagneto Carducci to Blackfoot (Idaho) | 5,505.61 mi (8,860.42 km) |
| Castagneto Carducci to Blackhawk (California) | 6,099.09 mi (9,815.53 km) |
| Castagneto Carducci to Blacksburg (Virginia) | 4,574.23 mi (7,361.51 km) |
| Castagneto Carducci to Blackwells Mills (New Jersey) | 4,188.69 mi (6,741.04 km) |
| Castagneto Carducci to Blaine (Minnesota) | 4,750.10 mi (7,644.54 km) |
| Castagneto Carducci to Bloomingdale (Florida) | 5,063.14 mi (8,148.34 km) |
| Castagneto Carducci to Bloomingdale (Illinois) | 4,695.09 mi (7,556.02 km) |
| Castagneto Carducci to Bloomington (California) | 6,174.33 mi (9,936.63 km) |
| Castagneto Carducci to Bloomington (Illinois) | 4,795.08 mi (7,716.94 km) |
| Castagneto Carducci to Bloomington (Indiana) | 4,752.45 mi (7,648.33 km) |
| Castagneto Carducci to Bloomington (Minnesota) | 4,769.33 mi (7,675.49 km) |
| Castagneto Carducci to Bloomsburg (Pennsylvania) | 4,249.42 mi (6,838.78 km) |
| Castagneto Carducci to Blue Ash (Ohio) | 4,659.13 mi (7,498.15 km) |
| Castagneto Carducci to Blue Island (Illinois) | 4,691.38 mi (7,550.05 km) |
