| Solothurn to Carson (California) | 5,906.35 mi (9,505.35 km) |
| Solothurn to Carson City (Nevada) | 5,645.04 mi (9,084.82 km) |
| Solothurn to Carteret (New Jersey) | 3,906.37 mi (6,286.70 km) |
| Solothurn to Cartersville (Georgia) | 4,635.57 mi (7,460.23 km) |
| Solothurn to Carthage (Missouri) | 4,878.67 mi (7,851.46 km) |
| Solothurn to Cary (Illinois) | 4,404.08 mi (7,087.68 km) |
| Solothurn to Cary (North Carolina) | 4,307.47 mi (6,932.20 km) |
| Solothurn to Casa de Oro-Mount Helix (California) | 5,926.54 mi (9,537.85 km) |
| Solothurn to Casa Grande (Arizona) | 5,743.42 mi (9,243.15 km) |
| Solothurn to Casas Adobes (Arizona) | 5,748.50 mi (9,251.31 km) |
| Solothurn to Cascades (Virginia) | 4,104.15 mi (6,604.99 km) |
| Solothurn to Casper (Wyoming) | 5,021.95 mi (8,082.05 km) |
| Solothurn to Casselberry (Florida) | 4,743.80 mi (7,634.41 km) |
| Solothurn to Castaic (California) | 5,881.06 mi (9,464.64 km) |
| Solothurn to Castle Pines (Colorado) | 5,150.07 mi (8,288.23 km) |
