| Williamsport to Conyers (Georgia) | 647.32 mi (1,041.76 km) |
| Williamsport to Cookeville (Tennessee) | 576.23 mi (927.35 km) |
| Williamsport to Coolidge (Arizona) | 1,971.00 mi (3,172.01 km) |
| Williamsport to Coon Rapids (Minnesota) | 861.63 mi (1,386.67 km) |
| Williamsport to Cooper City (Florida) | 1,066.06 mi (1,715.65 km) |
| Williamsport to Coos Bay (Oregon) | 2,383.68 mi (3,836.16 km) |
| Williamsport to Copiague (New York) | 194.20 mi (312.53 km) |
| Williamsport to Coppell (Texas) | 1,235.23 mi (1,987.91 km) |
| Williamsport to Copperas Cove (Texas) | 1,352.82 mi (2,177.16 km) |
| Williamsport to Coral Gables (Florida) | 1,089.29 mi (1,753.04 km) |
| Williamsport to Coral Springs (Florida) | 1,050.52 mi (1,690.65 km) |
| Williamsport to Coral Terrace (Florida) | 1,086.70 mi (1,748.87 km) |
| Williamsport to Coralville (Iowa) | 753.56 mi (1,212.73 km) |
| Williamsport to Coram (New York) | 211.45 mi (340.29 km) |
| Williamsport to Corcoran (California) | 2,298.52 mi (3,699.11 km) |
