| Thornbury to Cloverly (Maryland) | 3,553.95 mi (5,719.53 km) |
| Thornbury to Clovis (California) | 5,247.01 mi (8,444.25 km) |
| Thornbury to Clovis (New Mexico) | 4,809.48 mi (7,740.10 km) |
| Thornbury to Clute (Texas) | 4,789.82 mi (7,708.47 km) |
| Thornbury to Coachella (California) | 5,308.77 mi (8,543.64 km) |
| Thornbury to Coalinga (California) | 5,306.24 mi (8,539.57 km) |
| Thornbury to Coamo (Puerto Rico) | 4,129.62 mi (6,645.97 km) |
| Thornbury to Coatesville (Pennsylvania) | 3,466.83 mi (5,579.33 km) |
| Thornbury to Cockeysville (Maryland) | 3,522.19 mi (5,668.41 km) |
| Thornbury to Cocoa (Florida) | 4,218.77 mi (6,789.45 km) |
| Thornbury to Cocoa Beach (Florida) | 4,215.30 mi (6,783.87 km) |
| Thornbury to Coconut Creek (Florida) | 4,299.14 mi (6,918.79 km) |
| Thornbury to Coeur d'Alene (Idaho) | 4,554.75 mi (7,330.17 km) |
| Thornbury to Cohoes (New York) | 3,261.91 mi (5,249.53 km) |
| Thornbury to Cold Springs (Nevada) | 5,093.75 mi (8,197.60 km) |
