| Castelnaudary to Black Forest (Colorado) | 5,133.47 mi (8,261.52 km) |
| Castelnaudary to Blackfoot (Idaho) | 5,212.74 mi (8,389.09 km) |
| Castelnaudary to Blackhawk (California) | 5,820.31 mi (9,366.88 km) |
| Castelnaudary to Blacksburg (Virginia) | 4,182.67 mi (6,731.36 km) |
| Castelnaudary to Blackwells Mills (New Jersey) | 3,797.81 mi (6,111.98 km) |
| Castelnaudary to Blaine (Minnesota) | 4,413.04 mi (7,102.11 km) |
| Castelnaudary to Bloomingdale (Florida) | 4,651.28 mi (7,485.51 km) |
| Castelnaudary to Bloomingdale (Illinois) | 4,334.16 mi (6,975.16 km) |
| Castelnaudary to Bloomington (California) | 5,866.59 mi (9,441.37 km) |
| Castelnaudary to Bloomington (Illinois) | 4,430.63 mi (7,130.41 km) |
| Castelnaudary to Bloomington (Indiana) | 4,378.42 mi (7,046.38 km) |
| Castelnaudary to Bloomington (Minnesota) | 4,431.13 mi (7,131.22 km) |
| Castelnaudary to Bloomsburg (Pennsylvania) | 3,863.34 mi (6,217.44 km) |
| Castelnaudary to Blue Ash (Ohio) | 4,281.20 mi (6,889.92 km) |
| Castelnaudary to Blue Island (Illinois) | 4,328.51 mi (6,966.07 km) |
