| Castelo Branco to Caguas (Puerto Rico) | 3,763.66 mi (6,057.03 km) |
| Castelo Branco to Cahokia (Illinois) | 4,255.75 mi (6,848.97 km) |
| Castelo Branco to Calabasas (California) | 5,703.25 mi (9,178.49 km) |
| Castelo Branco to Caldwell (Idaho) | 5,179.06 mi (8,334.89 km) |
| Castelo Branco to Caledonia (Wisconsin) | 4,010.41 mi (6,454.13 km) |
| Castelo Branco to Calera (Alabama) | 4,281.57 mi (6,890.52 km) |
| Castelo Branco to Calexico (California) | 5,638.02 mi (9,073.52 km) |
| Castelo Branco to Calhoun (Georgia) | 4,144.27 mi (6,669.55 km) |
| Castelo Branco to California (Maryland) | 3,606.63 mi (5,804.30 km) |
| Castelo Branco to California City (California) | 5,621.87 mi (9,047.52 km) |
| Castelo Branco to Callaway (Florida) | 4,330.86 mi (6,969.84 km) |
| Castelo Branco to Calumet City (Illinois) | 4,032.81 mi (6,490.18 km) |
| Castelo Branco to Calverton (Maryland) | 3,606.95 mi (5,804.82 km) |
| Castelo Branco to Camano (Washington) | 5,172.78 mi (8,324.78 km) |
| Castelo Branco to Camarillo (California) | 5,714.13 mi (9,196.01 km) |
