| Helena to Casamassima | 5,622.29 mi (9,048.21 km) |
| Helena to Casandrino | 5,546.51 mi (8,926.25 km) |
| Helena to Casapulla | 5,539.86 mi (8,915.55 km) |
| Helena to Casarano | 5,711.91 mi (9,192.44 km) |
| Helena to Casatenovo | 5,134.44 mi (8,263.08 km) |
| Helena to Casciana Terme | 5,292.87 mi (8,518.05 km) |
| Helena to Cascina | 5,282.19 mi (8,500.87 km) |
| Helena to Caselle Torinese | 5,113.12 mi (8,228.76 km) |
| Helena to Caserta | 5,541.33 mi (8,917.91 km) |
| Helena to Casier | 5,223.37 mi (8,406.19 km) |
| Helena to Casorate Primo | 5,146.61 mi (8,282.66 km) |
| Helena to Casoria | 5,549.88 mi (8,931.67 km) |
| Helena to Cassano al Ionio | 5,672.89 mi (9,129.63 km) |
| Helena to Cassano d'Adda | 5,149.51 mi (8,287.34 km) |
| Helena to Cassano delle Murge | 5,621.93 mi (9,047.62 km) |
