| Portimao to Casamassima | 1,385.99 mi (2,230.54 km) |
| Portimao to Casandrino | 1,247.03 mi (2,006.90 km) |
| Portimao to Casapulla | 1,249.55 mi (2,010.95 km) |
| Portimao to Casarano | 1,450.61 mi (2,334.52 km) |
| Portimao to Casatenovo | 1,094.05 mi (1,760.71 km) |
| Portimao to Casciana Terme | 1,098.09 mi (1,767.20 km) |
| Portimao to Cascina | 1,098.01 mi (1,767.07 km) |
| Portimao to Caselle Torinese | 1,005.79 mi (1,618.67 km) |
| Portimao to Caserta | 1,252.14 mi (2,015.13 km) |
| Portimao to Casier | 1,224.66 mi (1,970.91 km) |
| Portimao to Casorate Primo | 1,069.63 mi (1,721.41 km) |
| Portimao to Casoria | 1,249.45 mi (2,010.79 km) |
| Portimao to Cassano al Ionio | 1,352.67 mi (2,176.92 km) |
| Portimao to Cassano d'Adda | 1,097.97 mi (1,767.00 km) |
| Portimao to Cassano delle Murge | 1,377.96 mi (2,217.61 km) |
