| Biddeford to Chivasso | 3,713.06 mi (5,975.59 km) |
| Biddeford to Ciampino | 4,035.02 mi (6,493.74 km) |
| Biddeford to Cicciano | 4,150.44 mi (6,679.49 km) |
| Biddeford to Cingoli | 4,004.34 mi (6,444.36 km) |
| Biddeford to Cinisello Balsamo | 3,758.05 mi (6,048.00 km) |
| Biddeford to Cinisi | 4,194.78 mi (6,750.84 km) |
| Biddeford to Cirie | 3,699.30 mi (5,953.45 km) |
| Biddeford to Ciro Marina | 4,325.80 mi (6,961.70 km) |
| Biddeford to Cislago | 3,744.14 mi (6,025.60 km) |
| Biddeford to Cisterna di Latina | 4,052.70 mi (6,522.20 km) |
| Biddeford to Cisternino | 4,284.96 mi (6,895.97 km) |
| Biddeford to Citta di Castello | 3,959.29 mi (6,371.87 km) |
| Biddeford to Citta Sant'Angelo | 4,071.25 mi (6,552.04 km) |
| Biddeford to Cittadella | 3,863.04 mi (6,216.97 km) |
| Biddeford to Cittanova | 4,320.56 mi (6,953.28 km) |
