| Castelnau-le-Lez to Blue Springs (Missouri) | 4,784.05 mi (7,699.18 km) |
| Castelnau-le-Lez to Bluffdale (Utah) | 5,388.99 mi (8,672.74 km) |
| Castelnau-le-Lez to Bluffton (Indiana) | 4,329.50 mi (6,967.66 km) |
| Castelnau-le-Lez to Bluffton (South Carolina) | 4,489.36 mi (7,224.93 km) |
| Castelnau-le-Lez to Blythe (California) | 5,844.34 mi (9,405.56 km) |
| Castelnau-le-Lez to Blytheville (Arkansas) | 4,734.80 mi (7,619.93 km) |
| Castelnau-le-Lez to Boca Raton (Florida) | 4,699.94 mi (7,563.82 km) |
| Castelnau-le-Lez to Boerne (Texas) | 5,399.27 mi (8,689.29 km) |
| Castelnau-le-Lez to Bogalusa (Louisiana) | 4,960.93 mi (7,983.84 km) |
| Castelnau-le-Lez to Boiling Springs (South Carolina) | 4,419.94 mi (7,113.20 km) |
| Castelnau-le-Lez to Boise (Idaho) | 5,369.48 mi (8,641.34 km) |
| Castelnau-le-Lez to Bolingbrook (Illinois) | 4,414.45 mi (7,104.37 km) |
| Castelnau-le-Lez to Bolivar (Missouri) | 4,811.04 mi (7,742.63 km) |
| Castelnau-le-Lez to Bon Air (Virginia) | 4,120.92 mi (6,631.98 km) |
| Castelnau-le-Lez to Bonham (Texas) | 5,110.90 mi (8,225.21 km) |
