| Williamsport to Cavaillon | 4,000.67 mi (6,438.45 km) |
| Williamsport to Cebazat | 3,852.95 mi (6,200.72 km) |
| Williamsport to Cenon | 3,723.32 mi (5,992.10 km) |
| Williamsport to Cergy | 3,715.26 mi (5,979.14 km) |
| Williamsport to Cernay | 3,963.35 mi (6,378.40 km) |
| Williamsport to Cesson | 3,750.86 mi (6,036.43 km) |
| Williamsport to Cesson-Sevigne | 3,585.77 mi (5,770.74 km) |
| Williamsport to Cestas | 3,719.97 mi (5,986.72 km) |
| Williamsport to Chalette-sur-Loing | 3,772.42 mi (6,071.12 km) |
| Williamsport to Challans | 3,607.98 mi (5,806.48 km) |
| Williamsport to Chalon-sur-Saone | 3,898.54 mi (6,274.09 km) |
| Williamsport to Chalons-en-Champagne | 3,812.52 mi (6,135.66 km) |
| Williamsport to Chamalieres | 3,853.30 mi (6,201.28 km) |
| Williamsport to Chambery | 3,981.93 mi (6,408.30 km) |
| Williamsport to Chambly | 3,719.29 mi (5,985.62 km) |
