| Howard to Caltagirone | 5,008.50 mi (8,060.40 km) |
| Howard to Caltanissetta | 4,978.52 mi (8,012.15 km) |
| Howard to Calvisano | 4,477.25 mi (7,205.45 km) |
| Howard to Calvizzano | 4,823.98 mi (7,763.45 km) |
| Howard to Camaiore | 4,537.18 mi (7,301.89 km) |
| Howard to Cameri | 4,406.32 mi (7,091.29 km) |
| Howard to Camisano Vicentino | 4,521.47 mi (7,276.60 km) |
| Howard to Campagna | 4,870.28 mi (7,837.95 km) |
| Howard to Campagnano di Roma | 4,697.78 mi (7,560.34 km) |
| Howard to Campi Bisenzio | 4,574.31 mi (7,361.65 km) |
| Howard to Campi Salentina | 4,994.31 mi (8,037.56 km) |
| Howard to Campiglia Marittima | 4,587.55 mi (7,382.96 km) |
| Howard to Campobasso | 4,811.69 mi (7,743.67 km) |
| Howard to Campobello di Licata | 4,983.97 mi (8,020.92 km) |
| Howard to Campobello di Mazara | 4,918.94 mi (7,916.28 km) |
