| Helena to Caltagirone | 5,766.15 mi (9,279.72 km) |
| Helena to Caltanissetta | 5,737.87 mi (9,234.21 km) |
| Helena to Calvisano | 5,183.95 mi (8,342.77 km) |
| Helena to Calvizzano | 5,546.46 mi (8,926.16 km) |
| Helena to Camaiore | 5,260.89 mi (8,466.59 km) |
| Helena to Cameri | 5,125.70 mi (8,249.02 km) |
| Helena to Camisano Vicentino | 5,214.23 mi (8,391.49 km) |
| Helena to Campagna | 5,586.62 mi (8,990.80 km) |
| Helena to Campagnano di Roma | 5,423.35 mi (8,728.04 km) |
| Helena to Campi Bisenzio | 5,292.05 mi (8,516.74 km) |
| Helena to Campi Salentina | 5,685.26 mi (9,149.54 km) |
| Helena to Campiglia Marittima | 5,318.43 mi (8,559.19 km) |
| Helena to Campobasso | 5,522.42 mi (8,887.48 km) |
| Helena to Campobello di Licata | 5,747.15 mi (9,249.14 km) |
| Helena to Campobello di Mazara | 5,689.14 mi (9,155.78 km) |
