| West Islip to Chivasso | 3,938.64 mi (6,338.63 km) |
| West Islip to Ciampino | 4,258.36 mi (6,853.17 km) |
| West Islip to Cicciano | 4,373.90 mi (7,039.12 km) |
| West Islip to Cingoli | 4,230.38 mi (6,808.15 km) |
| West Islip to Cinisello Balsamo | 3,984.92 mi (6,413.11 km) |
| West Islip to Cinisi | 4,412.72 mi (7,101.58 km) |
| West Islip to Cirie | 3,924.79 mi (6,316.33 km) |
| West Islip to Ciro Marina | 4,548.86 mi (7,320.68 km) |
| West Islip to Cislago | 3,971.01 mi (6,390.73 km) |
| West Islip to Cisterna di Latina | 4,275.89 mi (6,881.38 km) |
| West Islip to Cisternino | 4,510.13 mi (7,258.35 km) |
| West Islip to Citta di Castello | 4,184.87 mi (6,734.90 km) |
| West Islip to Citta Sant'Angelo | 4,296.61 mi (6,914.73 km) |
| West Islip to Cittadella | 4,091.42 mi (6,584.51 km) |
| West Islip to Cittanova | 4,541.30 mi (7,308.52 km) |
