| Opfikon to Clermont (Florida) | 4,807.90 mi (7,737.56 km) |
| Opfikon to Cleveland (Mississippi) | 4,936.20 mi (7,944.05 km) |
| Opfikon to Cleveland (Ohio) | 4,211.12 mi (6,777.14 km) |
| Opfikon to Cleveland (Tennessee) | 4,627.26 mi (7,446.85 km) |
| Opfikon to Cleveland Heights (Ohio) | 4,204.91 mi (6,767.14 km) |
| Opfikon to Cliffside Park (New Jersey) | 3,923.44 mi (6,314.17 km) |
| Opfikon to Clifton (Colorado) | 5,317.45 mi (8,557.60 km) |
| Opfikon to Clifton (New Jersey) | 3,928.86 mi (6,322.90 km) |
| Opfikon to Clinton (Iowa) | 4,527.98 mi (7,287.08 km) |
| Opfikon to Clinton (Maryland) | 4,133.59 mi (6,652.37 km) |
| Opfikon to Clinton (Mississippi) | 4,988.70 mi (8,028.54 km) |
| Opfikon to Clinton (Utah) | 5,320.15 mi (8,561.95 km) |
| Opfikon to Clive (Iowa) | 4,671.77 mi (7,518.49 km) |
| Opfikon to Cloquet (Minnesota) | 4,382.81 mi (7,053.46 km) |
| Opfikon to Cloverleaf (Texas) | 5,314.07 mi (8,552.17 km) |
