| West Islip to Celano | 4,290.41 mi (6,904.75 km) |
| West Islip to Cento | 4,100.33 mi (6,598.84 km) |
| West Islip to Cepagatti | 4,302.70 mi (6,924.53 km) |
| West Islip to Ceprano | 4,307.81 mi (6,932.74 km) |
| West Islip to Cercola | 4,369.45 mi (7,031.94 km) |
| West Islip to Cerea | 4,082.06 mi (6,569.44 km) |
| West Islip to Cerese | 4,066.95 mi (6,545.13 km) |
| West Islip to Cerignola | 4,423.00 mi (7,118.12 km) |
| West Islip to Cermenate | 3,974.46 mi (6,396.27 km) |
| West Islip to Cernusco sul Naviglio | 3,990.99 mi (6,422.88 km) |
| West Islip to Cerreto Guidi | 4,115.19 mi (6,622.77 km) |
| West Islip to Cerro Maggiore | 3,971.86 mi (6,392.09 km) |
| West Islip to Certaldo | 4,129.44 mi (6,645.69 km) |
| West Islip to Cerveteri | 4,229.20 mi (6,806.23 km) |
| West Islip to Cervia | 4,162.46 mi (6,698.84 km) |
