| Williamsport to Cernavoda | 4,925.24 mi (7,926.40 km) |
| Williamsport to Chitila | 4,839.51 mi (7,788.44 km) |
| Williamsport to Cisnadie | 4,717.90 mi (7,592.72 km) |
| Williamsport to Cluj-Napoca | 4,652.34 mi (7,487.21 km) |
| Williamsport to Codlea | 4,767.88 mi (7,673.15 km) |
| Williamsport to Comanesti | 4,774.32 mi (7,683.53 km) |
| Williamsport to Comarnic | 4,794.23 mi (7,715.57 km) |
| Williamsport to Constanta | 4,955.56 mi (7,975.20 km) |
| Williamsport to Corabia | 4,813.74 mi (7,746.96 km) |
| Williamsport to Costesti | 4,790.12 mi (7,708.96 km) |
| Williamsport to Covasna | 4,789.38 mi (7,707.76 km) |
| Williamsport to Craiova | 4,763.07 mi (7,665.42 km) |
| Williamsport to Cristuru Secuiesc | 4,727.14 mi (7,607.59 km) |
| Williamsport to Cugir | 4,682.22 mi (7,535.30 km) |
| Williamsport to Cumpana | 4,955.04 mi (7,974.36 km) |
