| Portet-sur-Garonne to Ciampino | 580.59 mi (934.36 km) |
| Portet-sur-Garonne to Cicciano | 693.43 mi (1,115.97 km) |
| Portet-sur-Garonne to Cingoli | 592.07 mi (952.85 km) |
| Portet-sur-Garonne to Cinisello Balsamo | 409.19 mi (658.53 km) |
| Portet-sur-Garonne to Cinisi | 713.48 mi (1,148.24 km) |
| Portet-sur-Garonne to Cirie | 327.89 mi (527.69 km) |
| Portet-sur-Garonne to Ciro Marina | 861.69 mi (1,386.76 km) |
| Portet-sur-Garonne to Cislago | 399.84 mi (643.49 km) |
| Portet-sur-Garonne to Cisterna di Latina | 595.92 mi (959.05 km) |
| Portet-sur-Garonne to Cisternino | 842.13 mi (1,355.28 km) |
| Portet-sur-Garonne to Citta di Castello | 542.88 mi (873.69 km) |
| Portet-sur-Garonne to Citta Sant'Angelo | 641.85 mi (1,032.96 km) |
| Portet-sur-Garonne to Cittadella | 530.95 mi (854.48 km) |
| Portet-sur-Garonne to Cittanova | 843.75 mi (1,357.88 km) |
| Portet-sur-Garonne to Cividale del Friuli | 615.16 mi (990.00 km) |
