| Castelo Branco to Bountiful (Utah) | 5,115.85 mi (8,233.17 km) |
| Castelo Branco to Bourbonnais (Illinois) | 4,061.62 mi (6,536.54 km) |
| Castelo Branco to Bowie (Maryland) | 3,599.72 mi (5,793.18 km) |
| Castelo Branco to Bowling Green (Kentucky) | 4,132.54 mi (6,650.68 km) |
| Castelo Branco to Bowling Green (Ohio) | 3,859.41 mi (6,211.13 km) |
| Castelo Branco to Box Elder (South Dakota) | 4,623.48 mi (7,440.78 km) |
| Castelo Branco to Boynton Beach (Florida) | 4,183.33 mi (6,732.43 km) |
| Castelo Branco to Bozeman (Montana) | 4,877.09 mi (7,848.92 km) |
| Castelo Branco to Bradenton (Florida) | 4,276.67 mi (6,882.64 km) |
| Castelo Branco to Bradfordville (Florida) | 4,246.46 mi (6,834.02 km) |
| Castelo Branco to Bradley (Illinois) | 4,060.69 mi (6,535.06 km) |
| Castelo Branco to Bradley Gardens (New Jersey) | 3,454.27 mi (5,559.11 km) |
| Castelo Branco to Brainerd (Minnesota) | 4,173.43 mi (6,716.49 km) |
| Castelo Branco to Brambleton (Virginia) | 3,637.65 mi (5,854.24 km) |
| Castelo Branco to Brandermill (Virginia) | 3,689.19 mi (5,937.19 km) |
