| Opfikon to Cloverly (Maryland) | 4,122.11 mi (6,633.89 km) |
| Opfikon to Clovis (California) | 5,796.98 mi (9,329.34 km) |
| Opfikon to Clovis (New Mexico) | 5,382.13 mi (8,661.70 km) |
| Opfikon to Clute (Texas) | 5,362.15 mi (8,629.54 km) |
| Opfikon to Coachella (California) | 5,869.39 mi (9,445.87 km) |
| Opfikon to Coalinga (California) | 5,856.05 mi (9,424.40 km) |
| Opfikon to Coamo (Puerto Rico) | 4,607.80 mi (7,415.54 km) |
| Opfikon to Coatesville (Pennsylvania) | 4,035.19 mi (6,494.01 km) |
| Opfikon to Cockeysville (Maryland) | 4,090.54 mi (6,583.09 km) |
| Opfikon to Cocoa (Florida) | 4,773.22 mi (7,681.75 km) |
| Opfikon to Cocoa Beach (Florida) | 4,769.40 mi (7,675.60 km) |
| Opfikon to Coconut Creek (Florida) | 4,847.93 mi (7,801.99 km) |
| Opfikon to Coeur d'Alene (Idaho) | 5,089.48 mi (8,190.72 km) |
| Opfikon to Cohoes (New York) | 3,832.31 mi (6,167.51 km) |
| Opfikon to Cold Springs (Nevada) | 5,638.22 mi (9,073.83 km) |
