| Echelon to Cernavoda | 4,912.10 mi (7,905.26 km) |
| Echelon to Chitila | 4,824.32 mi (7,763.99 km) |
| Echelon to Cisnadie | 4,703.20 mi (7,569.07 km) |
| Echelon to Cluj-Napoca | 4,639.32 mi (7,466.27 km) |
| Echelon to Codlea | 4,754.59 mi (7,651.78 km) |
| Echelon to Comanesti | 4,763.74 mi (7,666.50 km) |
| Echelon to Comarnic | 4,780.22 mi (7,693.02 km) |
| Echelon to Constanta | 4,942.79 mi (7,954.65 km) |
| Echelon to Corabia | 4,795.28 mi (7,717.26 km) |
| Echelon to Costesti | 4,774.01 mi (7,683.02 km) |
| Echelon to Covasna | 4,777.26 mi (7,688.25 km) |
| Echelon to Craiova | 4,745.02 mi (7,636.37 km) |
| Echelon to Cristuru Secuiesc | 4,714.68 mi (7,587.54 km) |
| Echelon to Cugir | 4,666.93 mi (7,510.71 km) |
| Echelon to Cumpana | 4,942.06 mi (7,953.48 km) |
