| Oro Valley to Chivasso | 5,848.95 mi (9,412.97 km) |
| Oro Valley to Ciampino | 6,181.48 mi (9,948.14 km) |
| Oro Valley to Cicciano | 6,292.55 mi (10,126.87 km) |
| Oro Valley to Cingoli | 6,126.26 mi (9,859.26 km) |
| Oro Valley to Cinisello Balsamo | 5,879.78 mi (9,462.60 km) |
| Oro Valley to Cinisi | 6,378.98 mi (10,265.97 km) |
| Oro Valley to Cirie | 5,836.52 mi (9,392.97 km) |
| Oro Valley to Ciro Marina | 6,466.47 mi (10,406.78 km) |
| Oro Valley to Cislago | 5,866.22 mi (9,440.77 km) |
| Oro Valley to Cisterna di Latina | 6,200.04 mi (9,978.01 km) |
| Oro Valley to Cisternino | 6,406.73 mi (10,310.63 km) |
| Oro Valley to Citta di Castello | 6,087.33 mi (9,796.61 km) |
| Oro Valley to Citta Sant'Angelo | 6,197.78 mi (9,974.36 km) |
| Oro Valley to Cittadella | 5,964.57 mi (9,599.05 km) |
| Oro Valley to Cittanova | 6,481.07 mi (10,430.27 km) |
