| Opfikon to Commerce City (Colorado) | 5,153.44 mi (8,293.66 km) |
| Opfikon to Compton (California) | 5,923.63 mi (9,533.17 km) |
| Opfikon to Comstock Park (Michigan) | 4,298.85 mi (6,918.34 km) |
| Opfikon to Concord (California) | 5,796.60 mi (9,328.73 km) |
| Opfikon to Concord (Missouri) | 4,690.32 mi (7,548.35 km) |
| Opfikon to Concord (New Hampshire) | 3,725.27 mi (5,995.24 km) |
| Opfikon to Concord (North Carolina) | 4,440.19 mi (7,145.80 km) |
| Opfikon to Conneaut (Ohio) | 4,146.92 mi (6,673.82 km) |
| Opfikon to Connersville (Indiana) | 4,430.84 mi (7,130.75 km) |
| Opfikon to Conroe (Texas) | 5,299.25 mi (8,528.32 km) |
| Opfikon to Converse (Texas) | 5,454.07 mi (8,777.47 km) |
| Opfikon to Conway (Arkansas) | 4,940.39 mi (7,950.78 km) |
| Opfikon to Conway (Florida) | 4,792.54 mi (7,712.84 km) |
| Opfikon to Conway (South Carolina) | 4,443.11 mi (7,150.49 km) |
| Opfikon to Conyers (Georgia) | 4,662.10 mi (7,502.93 km) |
