| Mason City to Caltagirone | 5,270.65 mi (8,482.30 km) |
| Mason City to Caltanissetta | 5,240.76 mi (8,434.19 km) |
| Mason City to Calvisano | 4,733.20 mi (7,617.35 km) |
| Mason City to Calvizzano | 5,082.46 mi (8,179.43 km) |
| Mason City to Camaiore | 4,795.05 mi (7,716.88 km) |
| Mason City to Cameri | 4,663.38 mi (7,504.99 km) |
| Mason City to Camisano Vicentino | 4,776.05 mi (7,686.32 km) |
| Mason City to Campagna | 5,128.27 mi (8,253.15 km) |
| Mason City to Campagnano di Roma | 4,956.24 mi (7,976.30 km) |
| Mason City to Campi Bisenzio | 4,831.67 mi (7,775.82 km) |
| Mason City to Campi Salentina | 5,250.05 mi (8,449.14 km) |
| Mason City to Campiglia Marittima | 4,846.26 mi (7,799.30 km) |
| Mason City to Campobasso | 5,068.97 mi (8,157.72 km) |
| Mason City to Campobello di Licata | 5,246.55 mi (8,443.51 km) |
| Mason City to Campobello di Mazara | 5,182.00 mi (8,339.62 km) |
