| Opfikon to Camas (Washington) | 5,357.63 mi (8,622.28 km) |
| Opfikon to Cambridge (Maryland) | 4,107.27 mi (6,610.01 km) |
| Opfikon to Cambridge (Massachusetts) | 3,740.42 mi (6,019.63 km) |
| Opfikon to Camden (Arkansas) | 5,030.11 mi (8,095.18 km) |
| Opfikon to Camden (New Jersey) | 4,007.37 mi (6,449.24 km) |
| Opfikon to Cameron Park (California) | 5,726.57 mi (9,216.03 km) |
| Opfikon to Camp Pendleton South (California) | 5,935.61 mi (9,552.44 km) |
| Opfikon to Camp Springs (Maryland) | 4,131.77 mi (6,649.44 km) |
| Opfikon to Camp Verde (Arizona) | 5,679.04 mi (9,139.53 km) |
| Opfikon to Campbell (California) | 5,836.19 mi (9,392.44 km) |
| Opfikon to Campbellsville (Kentucky) | 4,545.94 mi (7,315.98 km) |
| Opfikon to Campton Hills (Illinois) | 4,453.66 mi (7,167.48 km) |
| Opfikon to Canby (Oregon) | 5,383.88 mi (8,664.52 km) |
| Opfikon to Candelaria (Puerto Rico) | 4,585.07 mi (7,378.95 km) |
| Opfikon to Candler-McAfee (Georgia) | 4,670.76 mi (7,516.86 km) |
