| Opfikon to Cookeville (Tennessee) | 4,608.30 mi (7,416.34 km) |
| Opfikon to Coolidge (Arizona) | 5,759.02 mi (9,268.24 km) |
| Opfikon to Coon Rapids (Minnesota) | 4,484.00 mi (7,216.30 km) |
| Opfikon to Cooper City (Florida) | 4,863.72 mi (7,827.41 km) |
| Opfikon to Coos Bay (Oregon) | 5,534.96 mi (8,907.66 km) |
| Opfikon to Copiague (New York) | 3,904.67 mi (6,283.96 km) |
| Opfikon to Coppell (Texas) | 5,224.16 mi (8,407.47 km) |
| Opfikon to Copperas Cove (Texas) | 5,355.11 mi (8,618.22 km) |
| Opfikon to Coral Gables (Florida) | 4,879.56 mi (7,852.89 km) |
| Opfikon to Coral Springs (Florida) | 4,851.75 mi (7,808.14 km) |
| Opfikon to Coral Terrace (Florida) | 4,878.99 mi (7,851.98 km) |
| Opfikon to Coralville (Iowa) | 4,585.83 mi (7,380.18 km) |
| Opfikon to Coram (New York) | 3,879.77 mi (6,243.89 km) |
| Opfikon to Corcoran (California) | 5,836.80 mi (9,393.42 km) |
| Opfikon to Cordele (Georgia) | 4,733.28 mi (7,617.48 km) |
