| Suisun City to Cortona | 6,110.73 mi (9,834.26 km) |
| Suisun City to Cosenza | 6,461.49 mi (10,398.77 km) |
| Suisun City to Cossato | 5,872.16 mi (9,450.33 km) |
| Suisun City to Costa Volpino | 5,912.82 mi (9,515.77 km) |
| Suisun City to Creazzo | 5,968.19 mi (9,604.87 km) |
| Suisun City to Crema | 5,927.01 mi (9,538.59 km) |
| Suisun City to Cremona | 5,950.05 mi (9,575.68 km) |
| Suisun City to Crevalcore | 6,005.15 mi (9,664.36 km) |
| Suisun City to Crispiano | 6,411.71 mi (10,318.64 km) |
| Suisun City to Crosia | 6,460.14 mi (10,396.59 km) |
| Suisun City to Crotone | 6,498.40 mi (10,458.16 km) |
| Suisun City to Cuneo | 5,919.05 mi (9,525.79 km) |
| Suisun City to Cuorgne | 5,866.76 mi (9,441.63 km) |
| Suisun City to Cusano Milanino | 5,902.48 mi (9,499.12 km) |
| Suisun City to Cutro | 6,497.67 mi (10,457.00 km) |
