| Great Falls to Cernavoda | 5,627.15 mi (9,056.03 km) |
| Great Falls to Chitila | 5,570.63 mi (8,965.06 km) |
| Great Falls to Cisnadie | 5,455.05 mi (8,779.05 km) |
| Great Falls to Cluj-Napoca | 5,378.23 mi (8,655.43 km) |
| Great Falls to Codlea | 5,485.77 mi (8,828.49 km) |
| Great Falls to Comanesti | 5,463.51 mi (8,792.67 km) |
| Great Falls to Comarnic | 5,517.32 mi (8,879.27 km) |
| Great Falls to Constanta | 5,650.90 mi (9,094.25 km) |
| Great Falls to Corabia | 5,580.89 mi (8,981.58 km) |
| Great Falls to Costesti | 5,535.32 mi (8,908.24 km) |
| Great Falls to Covasna | 5,493.18 mi (8,840.42 km) |
| Great Falls to Craiova | 5,530.60 mi (8,900.63 km) |
| Great Falls to Cristuru Secuiesc | 5,440.29 mi (8,755.29 km) |
| Great Falls to Cugir | 5,428.69 mi (8,736.64 km) |
| Great Falls to Cumpana | 5,652.56 mi (9,096.91 km) |
