| East Islip to Cortona | 4,174.51 mi (6,718.23 km) |
| East Islip to Cosenza | 4,506.83 mi (7,253.04 km) |
| East Islip to Cossato | 3,933.57 mi (6,330.47 km) |
| East Islip to Costa Volpino | 4,008.35 mi (6,450.82 km) |
| East Islip to Creazzo | 4,077.01 mi (6,561.31 km) |
| East Islip to Crema | 4,005.30 mi (6,445.91 km) |
| East Islip to Cremona | 4,027.87 mi (6,482.22 km) |
| East Islip to Crevalcore | 4,089.61 mi (6,581.59 km) |
| East Islip to Crispiano | 4,500.88 mi (7,243.46 km) |
| East Islip to Crosia | 4,519.66 mi (7,273.69 km) |
| East Islip to Crotone | 4,553.76 mi (7,328.57 km) |
| East Islip to Cuneo | 3,943.53 mi (6,346.50 km) |
| East Islip to Cuorgne | 3,916.63 mi (6,303.20 km) |
| East Islip to Cusano Milanino | 3,977.96 mi (6,401.91 km) |
| East Islip to Cutro | 4,549.73 mi (7,322.08 km) |
