| Portales to Chivasso | 5,472.66 mi (8,807.40 km) |
| Portales to Ciampino | 5,804.09 mi (9,340.77 km) |
| Portales to Cicciano | 5,917.00 mi (9,522.49 km) |
| Portales to Cingoli | 5,755.48 mi (9,262.54 km) |
| Portales to Cinisello Balsamo | 5,507.55 mi (8,863.54 km) |
| Portales to Cinisi | 5,991.31 mi (9,642.08 km) |
| Portales to Cirie | 5,459.80 mi (8,786.69 km) |
| Portales to Ciro Marina | 6,092.27 mi (9,804.57 km) |
| Portales to Cislago | 5,493.81 mi (8,841.43 km) |
| Portales to Cisterna di Latina | 5,822.49 mi (9,370.40 km) |
| Portales to Cisternino | 6,037.65 mi (9,716.66 km) |
| Portales to Citta di Castello | 5,714.61 mi (9,196.78 km) |
| Portales to Citta Sant'Angelo | 5,826.13 mi (9,376.25 km) |
| Portales to Cittadella | 5,598.33 mi (9,009.65 km) |
| Portales to Cittanova | 6,101.07 mi (9,818.72 km) |
