| Castelo Branco to Carson (California) | 5,700.45 mi (9,173.98 km) |
| Castelo Branco to Carson City (Nevada) | 5,506.87 mi (8,862.46 km) |
| Castelo Branco to Carteret (New Jersey) | 3,432.58 mi (5,524.21 km) |
| Castelo Branco to Cartersville (Georgia) | 4,148.78 mi (6,676.81 km) |
| Castelo Branco to Carthage (Missouri) | 4,499.71 mi (7,241.59 km) |
| Castelo Branco to Cary (Illinois) | 4,045.74 mi (6,510.99 km) |
| Castelo Branco to Cary (North Carolina) | 3,798.17 mi (6,112.56 km) |
| Castelo Branco to Casa de Oro-Mount Helix (California) | 5,697.26 mi (9,168.85 km) |
| Castelo Branco to Casa Grande (Arizona) | 5,465.63 mi (8,796.09 km) |
| Castelo Branco to Casas Adobes (Arizona) | 5,457.82 mi (8,783.50 km) |
| Castelo Branco to Cascades (Virginia) | 3,628.68 mi (5,839.79 km) |
| Castelo Branco to Casper (Wyoming) | 4,806.87 mi (7,735.91 km) |
| Castelo Branco to Casselberry (Florida) | 4,168.77 mi (6,708.99 km) |
| Castelo Branco to Castaic (California) | 5,685.27 mi (9,149.55 km) |
| Castelo Branco to Castle Pines (Colorado) | 4,883.26 mi (7,858.85 km) |
