| Castelo Branco to Cicero (Illinois) | 4,035.06 mi (6,493.80 km) |
| Castelo Branco to Cimarron Hills (Colorado) | 4,900.47 mi (7,886.55 km) |
| Castelo Branco to Cincinnati (Ohio) | 3,968.87 mi (6,387.28 km) |
| Castelo Branco to Cinco Ranch (Texas) | 4,853.94 mi (7,811.66 km) |
| Castelo Branco to Circleville (Ohio) | 3,879.44 mi (6,243.35 km) |
| Castelo Branco to Citrus (California) | 5,671.95 mi (9,128.12 km) |
| Castelo Branco to Citrus Heights (California) | 5,588.23 mi (8,993.38 km) |
| Castelo Branco to Citrus Park (Florida) | 4,254.32 mi (6,846.67 km) |
| Castelo Branco to Claiborne (Louisiana) | 4,570.96 mi (7,356.25 km) |
| Castelo Branco to Claremont (California) | 5,664.25 mi (9,115.73 km) |
| Castelo Branco to Claremont (New Hampshire) | 3,273.43 mi (5,268.08 km) |
| Castelo Branco to Claremore (Oklahoma) | 4,590.88 mi (7,388.31 km) |
| Castelo Branco to Clarksburg (Maryland) | 3,617.64 mi (5,822.03 km) |
| Castelo Branco to Clarksburg (West Virginia) | 3,764.02 mi (6,057.61 km) |
| Castelo Branco to Clarksdale (Mississippi) | 4,430.11 mi (7,129.57 km) |
