| Helena to Civril | 6,112.36 mi (9,836.89 km) |
| Helena to Cizre | 6,421.72 mi (10,334.76 km) |
| Helena to Cobanlar | 6,111.03 mi (9,834.75 km) |
| Helena to Corlu | 5,890.34 mi (9,479.59 km) |
| Helena to Corum | 6,081.83 mi (9,787.77 km) |
| Helena to Cukurca | 6,450.20 mi (10,380.59 km) |
| Helena to Cukurcayir | 6,142.12 mi (9,884.79 km) |
| Helena to Cumayeri | 5,978.18 mi (9,620.95 km) |
| Helena to Cumra | 6,226.09 mi (10,019.92 km) |
| Helena to Cungus | 6,314.11 mi (10,161.58 km) |
| Helena to Dargecit | 6,400.02 mi (10,299.84 km) |
| Helena to Davutlar | 6,089.68 mi (9,800.39 km) |
| Helena to Demirozu | 6,197.30 mi (9,973.59 km) |
| Helena to Demre | 6,246.58 mi (10,052.90 km) |
| Helena to Denizciler | 6,357.11 mi (10,230.79 km) |
