| Mason City to Campo de Criptana | 4,444.40 mi (7,152.57 km) |
| Mason City to Campos del Puerto | 4,703.82 mi (7,570.07 km) |
| Mason City to Canals | 4,571.37 mi (7,356.91 km) |
| Mason City to Candelaria | 4,276.48 mi (6,882.33 km) |
| Mason City to Canet de Mar | 4,593.62 mi (7,392.72 km) |
| Mason City to Cangas | 4,088.34 mi (6,579.54 km) |
| Mason City to Cangas de Narcea | 4,150.62 mi (6,679.77 km) |
| Mason City to Canovellas | 4,580.17 mi (7,371.07 km) |
| Mason City to Canteras | 4,608.08 mi (7,415.99 km) |
| Mason City to Cantillana | 4,398.61 mi (7,078.88 km) |
| Mason City to Capdepera | 4,709.43 mi (7,579.09 km) |
| Mason City to Carballo | 4,057.66 mi (6,530.17 km) |
| Mason City to Carcagente | 4,570.46 mi (7,355.45 km) |
| Mason City to Cardedeu | 4,582.39 mi (7,374.65 km) |
| Mason City to Carlet | 4,563.03 mi (7,343.49 km) |
