| Clearlake to Collegno | 5,858.67 mi (9,428.62 km) |
| Clearlake to Cologno al Serio | 5,891.00 mi (9,480.65 km) |
| Clearlake to Cologno Monzese | 5,882.27 mi (9,466.60 km) |
| Clearlake to Colorno | 5,946.85 mi (9,570.53 km) |
| Clearlake to Comacchio | 6,009.70 mi (9,671.67 km) |
| Clearlake to Comiso | 6,528.45 mi (10,506.52 km) |
| Clearlake to Como | 5,861.04 mi (9,432.44 km) |
| Clearlake to Concordia Sagittaria | 5,965.93 mi (9,601.24 km) |
| Clearlake to Concorezzo | 5,880.45 mi (9,463.67 km) |
| Clearlake to Conegliano | 5,944.39 mi (9,566.57 km) |
| Clearlake to Conselice | 6,010.70 mi (9,673.29 km) |
| Clearlake to Conselve | 5,970.45 mi (9,608.50 km) |
| Clearlake to Conversano | 6,360.57 mi (10,236.34 km) |
| Clearlake to Copertino | 6,426.89 mi (10,343.07 km) |
| Clearlake to Copparo | 5,988.68 mi (9,637.86 km) |
