| Williamsport to Chojnice | 4,165.33 mi (6,703.45 km) |
| Williamsport to Chojnow | 4,191.84 mi (6,746.11 km) |
| Williamsport to Chorzow | 4,339.05 mi (6,983.03 km) |
| Williamsport to Choszczno | 4,107.44 mi (6,610.29 km) |
| Williamsport to Chrzanow | 4,362.01 mi (7,019.98 km) |
| Williamsport to Ciechanow | 4,303.99 mi (6,926.60 km) |
| Williamsport to Ciechocinek | 4,238.02 mi (6,820.44 km) |
| Williamsport to Cieszyn | 4,347.82 mi (6,997.14 km) |
| Williamsport to Czarna Bialostocka | 4,379.30 mi (7,047.81 km) |
| Williamsport to Czarnkow | 4,158.08 mi (6,691.78 km) |
| Williamsport to Czechowice-Dziedzice | 4,355.66 mi (7,009.76 km) |
| Williamsport to Czeladz | 4,342.75 mi (6,988.98 km) |
| Williamsport to Czersk Pomorski | 4,177.01 mi (6,722.25 km) |
| Williamsport to Czestochowa | 4,326.54 mi (6,962.90 km) |
| Williamsport to Czluchow | 4,160.01 mi (6,694.89 km) |
