| Sonoma to Castrovillari | 6,439.62 mi (10,363.57 km) |
| Sonoma to Catania | 6,544.36 mi (10,532.13 km) |
| Sonoma to Catanzaro | 6,504.88 mi (10,468.59 km) |
| Sonoma to Cattolica | 6,102.06 mi (9,820.31 km) |
| Sonoma to Cava de' Tirreni | 6,346.09 mi (10,213.04 km) |
| Sonoma to Cavallino | 6,463.71 mi (10,402.33 km) |
| Sonoma to Cavarzere | 6,017.03 mi (9,683.47 km) |
| Sonoma to Cave | 6,231.49 mi (10,028.62 km) |
| Sonoma to Cavriago | 5,998.89 mi (9,654.27 km) |
| Sonoma to Cavriglia | 6,092.92 mi (9,805.61 km) |
| Sonoma to Cazzago San Martino | 5,934.87 mi (9,551.25 km) |
| Sonoma to Ceccano | 6,257.26 mi (10,070.09 km) |
| Sonoma to Cecina | 6,076.62 mi (9,779.38 km) |
| Sonoma to Cefalu | 6,481.80 mi (10,431.45 km) |
| Sonoma to Ceglie Messapico | 6,425.32 mi (10,340.55 km) |
