| Helston to Caño Martin Peña (Puerto Rico) | 3,962.00 mi (6,376.23 km) |
| Helston to Cañon City (Colorado) | 4,631.70 mi (7,454.00 km) |
| Helston to Canóvanas (Puerto Rico) | 3,958.65 mi (6,370.84 km) |
| Helston to Canton (Georgia) | 4,002.81 mi (6,441.90 km) |
| Helston to Canton (Illinois) | 3,944.69 mi (6,348.36 km) |
| Helston to Canton (Mississippi) | 4,314.37 mi (6,943.31 km) |
| Helston to Canton (Ohio) | 3,581.01 mi (5,763.08 km) |
| Helston to Canyon (Texas) | 4,679.21 mi (7,530.46 km) |
| Helston to Canyon Lake (California) | 5,317.31 mi (8,557.38 km) |
| Helston to Canyon Lake (Texas) | 4,789.66 mi (7,708.21 km) |
| Helston to Cape Coral (Florida) | 4,255.90 mi (6,849.20 km) |
| Helston to Cape Girardeau (Missouri) | 4,073.12 mi (6,555.05 km) |
| Helston to Carbondale (Illinois) | 4,040.47 mi (6,502.50 km) |
| Helston to Carlisle (Pennsylvania) | 3,432.26 mi (5,523.69 km) |
| Helston to Carlsbad (California) | 5,348.93 mi (8,608.27 km) |
