| Clearlake to Cortona | 6,086.32 mi (9,794.99 km) |
| Clearlake to Cosenza | 6,436.57 mi (10,358.65 km) |
| Clearlake to Cossato | 5,848.62 mi (9,412.44 km) |
| Clearlake to Costa Volpino | 5,888.09 mi (9,475.97 km) |
| Clearlake to Creazzo | 5,942.86 mi (9,564.12 km) |
| Clearlake to Crema | 5,902.76 mi (9,499.57 km) |
| Clearlake to Cremona | 5,925.74 mi (9,536.56 km) |
| Clearlake to Crevalcore | 5,980.46 mi (9,624.61 km) |
| Clearlake to Crispiano | 6,385.54 mi (10,276.54 km) |
| Clearlake to Crosia | 6,434.76 mi (10,355.74 km) |
| Clearlake to Crotone | 6,473.03 mi (10,417.34 km) |
| Clearlake to Cuneo | 5,896.53 mi (9,489.54 km) |
| Clearlake to Cuorgne | 5,843.60 mi (9,404.36 km) |
| Clearlake to Cusano Milanino | 5,878.40 mi (9,460.37 km) |
| Clearlake to Cutro | 6,472.42 mi (10,416.35 km) |
