| Williamsport to Casamassima | 4,619.97 mi (7,435.12 km) |
| Williamsport to Casandrino | 4,506.23 mi (7,252.07 km) |
| Williamsport to Casapulla | 4,502.50 mi (7,246.07 km) |
| Williamsport to Casarano | 4,710.96 mi (7,581.56 km) |
| Williamsport to Casatenovo | 4,121.66 mi (6,633.18 km) |
| Williamsport to Casciana Terme | 4,253.09 mi (6,844.69 km) |
| Williamsport to Cascina | 4,244.57 mi (6,830.97 km) |
| Williamsport to Caselle Torinese | 4,068.87 mi (6,548.21 km) |
| Williamsport to Caserta | 4,504.66 mi (7,249.54 km) |
| Williamsport to Casier | 4,247.82 mi (6,836.20 km) |
| Williamsport to Casorate Primo | 4,122.27 mi (6,634.16 km) |
| Williamsport to Casoria | 4,509.68 mi (7,257.63 km) |
| Williamsport to Cassano al Ionio | 4,640.92 mi (7,468.83 km) |
| Williamsport to Cassano d'Adda | 4,135.92 mi (6,656.11 km) |
| Williamsport to Cassano delle Murge | 4,616.24 mi (7,429.12 km) |
