| Altoona to Cernavoda | 5,011.69 mi (8,065.54 km) |
| Altoona to Chitila | 4,926.14 mi (7,927.86 km) |
| Altoona to Cisnadie | 4,804.50 mi (7,732.09 km) |
| Altoona to Cluj-Napoca | 4,738.80 mi (7,626.37 km) |
| Altoona to Codlea | 4,854.36 mi (7,812.33 km) |
| Altoona to Comanesti | 4,860.56 mi (7,822.31 km) |
| Altoona to Comarnic | 4,880.77 mi (7,854.85 km) |
| Altoona to Constanta | 5,041.98 mi (8,114.29 km) |
| Altoona to Corabia | 4,900.60 mi (7,886.76 km) |
| Altoona to Costesti | 4,876.83 mi (7,848.50 km) |
| Altoona to Covasna | 4,875.75 mi (7,846.77 km) |
| Altoona to Craiova | 4,849.91 mi (7,805.18 km) |
| Altoona to Cristuru Secuiesc | 4,813.55 mi (7,746.66 km) |
| Altoona to Cugir | 4,768.87 mi (7,674.75 km) |
| Altoona to Cumpana | 5,041.48 mi (8,113.48 km) |
