| Williamsport to Candler-McAfee (Georgia) | 652.80 mi (1,050.57 km) |
| Williamsport to Caño Martin Peña (Puerto Rico) | 1,704.52 mi (2,743.16 km) |
| Williamsport to Cañon City (Colorado) | 1,500.92 mi (2,415.50 km) |
| Williamsport to Canóvanas (Puerto Rico) | 1,711.90 mi (2,755.04 km) |
| Williamsport to Canton (Georgia) | 631.35 mi (1,016.06 km) |
| Williamsport to Canton (Illinois) | 680.07 mi (1,094.47 km) |
| Williamsport to Canton (Mississippi) | 931.88 mi (1,499.71 km) |
| Williamsport to Canton (Ohio) | 227.68 mi (366.42 km) |
| Williamsport to Canyon (Texas) | 1,414.11 mi (2,275.78 km) |
| Williamsport to Canyon Lake (California) | 2,245.74 mi (3,614.17 km) |
| Williamsport to Canyon Lake (Texas) | 1,422.08 mi (2,288.61 km) |
| Williamsport to Cape Coral (Florida) | 1,047.25 mi (1,685.38 km) |
| Williamsport to Cape Girardeau (Missouri) | 721.85 mi (1,161.70 km) |
| Williamsport to Carbondale (Illinois) | 693.11 mi (1,115.45 km) |
| Williamsport to Carlisle (Pennsylvania) | 72.38 mi (116.48 km) |
