| Prospect Heights to Chivasso | 4,490.66 mi (7,227.02 km) |
| Prospect Heights to Ciampino | 4,820.39 mi (7,757.67 km) |
| Prospect Heights to Cicciano | 4,934.32 mi (7,941.02 km) |
| Prospect Heights to Cingoli | 4,776.83 mi (7,687.56 km) |
| Prospect Heights to Cinisello Balsamo | 4,528.55 mi (7,287.99 km) |
| Prospect Heights to Cinisi | 5,000.76 mi (8,047.95 km) |
| Prospect Heights to Cirie | 4,477.50 mi (7,205.84 km) |
| Prospect Heights to Ciro Marina | 5,110.10 mi (8,223.91 km) |
| Prospect Heights to Cislago | 4,514.71 mi (7,265.72 km) |
| Prospect Heights to Cisterna di Latina | 4,838.64 mi (7,787.05 km) |
| Prospect Heights to Cisternino | 5,059.44 mi (8,142.38 km) |
| Prospect Heights to Citta di Castello | 4,734.60 mi (7,619.60 km) |
| Prospect Heights to Citta Sant'Angelo | 4,846.59 mi (7,799.84 km) |
| Prospect Heights to Cittadella | 4,623.91 mi (7,441.47 km) |
| Prospect Heights to Cittanova | 5,114.93 mi (8,231.68 km) |
