| Opfikon to Coldwater (Michigan) | 4,321.64 mi (6,955.01 km) |
| Opfikon to Colesville (Maryland) | 4,123.61 mi (6,636.31 km) |
| Opfikon to College (Alaska) | 4,573.96 mi (7,361.07 km) |
| Opfikon to College Park (Georgia) | 4,683.08 mi (7,536.68 km) |
| Opfikon to College Park (Maryland) | 4,124.11 mi (6,637.12 km) |
| Opfikon to College Station (Texas) | 5,318.48 mi (8,559.27 km) |
| Opfikon to Collegedale (Tennessee) | 4,640.70 mi (7,468.49 km) |
| Opfikon to Colleyville (Texas) | 5,234.04 mi (8,423.38 km) |
| Opfikon to Collierville (Tennessee) | 4,831.07 mi (7,774.86 km) |
| Opfikon to Collinsville (Illinois) | 4,668.73 mi (7,513.59 km) |
| Opfikon to Colonia (New Jersey) | 3,946.66 mi (6,351.53 km) |
| Opfikon to Colonial Heights (Virginia) | 4,219.07 mi (6,789.94 km) |
| Opfikon to Colonial Park (Pennsylvania) | 4,063.02 mi (6,538.80 km) |
| Opfikon to Colorado Springs (Colorado) | 5,203.35 mi (8,373.98 km) |
| Opfikon to Colton (California) | 5,886.08 mi (9,472.74 km) |
