| Slough to Black Forest (Colorado) | 4,694.17 mi (7,554.53 km) |
| Slough to Blackfoot (Idaho) | 4,728.47 mi (7,609.74 km) |
| Slough to Blackhawk (California) | 5,322.77 mi (8,566.18 km) |
| Slough to Blacksburg (Virginia) | 3,860.76 mi (6,213.30 km) |
| Slough to Blackwells Mills (New Jersey) | 3,476.73 mi (5,595.25 km) |
| Slough to Blaine (Minnesota) | 3,983.50 mi (6,410.82 km) |
| Slough to Bloomingdale (Florida) | 4,389.84 mi (7,064.77 km) |
| Slough to Bloomingdale (Illinois) | 3,944.18 mi (6,347.54 km) |
| Slough to Bloomington (California) | 5,397.95 mi (8,687.15 km) |
| Slough to Bloomington (Illinois) | 4,046.89 mi (6,512.84 km) |
| Slough to Bloomington (Indiana) | 4,014.07 mi (6,460.03 km) |
| Slough to Bloomington (Minnesota) | 4,003.24 mi (6,442.59 km) |
| Slough to Bloomsburg (Pennsylvania) | 3,529.42 mi (5,680.05 km) |
| Slough to Blue Ash (Ohio) | 3,925.76 mi (6,317.90 km) |
| Slough to Blue Island (Illinois) | 3,942.15 mi (6,344.27 km) |
