| Williamsport to Cloverleaf (Texas) | 1,286.31 mi (2,070.12 km) |
| Williamsport to Cloverly (Maryland) | 147.42 mi (237.26 km) |
| Williamsport to Clovis (California) | 2,285.91 mi (3,678.82 km) |
| Williamsport to Clovis (New Mexico) | 1,495.85 mi (2,407.34 km) |
| Williamsport to Clute (Texas) | 1,332.42 mi (2,144.32 km) |
| Williamsport to Coachella (California) | 2,187.54 mi (3,520.51 km) |
| Williamsport to Coalinga (California) | 2,336.47 mi (3,760.18 km) |
| Williamsport to Coamo (Puerto Rico) | 1,720.65 mi (2,769.12 km) |
| Williamsport to Coatesville (Pennsylvania) | 107.67 mi (173.28 km) |
| Williamsport to Cockeysville (Maryland) | 123.45 mi (198.67 km) |
| Williamsport to Cocoa (Florida) | 913.00 mi (1,469.33 km) |
| Williamsport to Cocoa Beach (Florida) | 914.54 mi (1,471.81 km) |
| Williamsport to Coconut Creek (Florida) | 1,049.09 mi (1,688.35 km) |
| Williamsport to Coeur d'Alene (Idaho) | 1,987.22 mi (3,198.13 km) |
| Williamsport to Cohoes (New York) | 201.07 mi (323.60 km) |
