| Opfikon to Rockville (Maryland) | 4,129.63 mi (6,645.99 km) |
| Opfikon to Rockville Centre (New York) | 3,915.29 mi (6,301.04 km) |
| Opfikon to Rockwall (Texas) | 5,204.95 mi (8,376.55 km) |
| Opfikon to Rocky Mount (North Carolina) | 4,293.84 mi (6,910.28 km) |
| Opfikon to Rocky Point (New York) | 3,874.62 mi (6,235.59 km) |
| Opfikon to Rocky River (Ohio) | 4,218.27 mi (6,788.66 km) |
| Opfikon to Roessleville (New York) | 3,839.04 mi (6,178.34 km) |
| Opfikon to Rogers (Arkansas) | 4,944.88 mi (7,958.01 km) |
| Opfikon to Rogers (Minnesota) | 4,493.04 mi (7,230.85 km) |
| Opfikon to Rohnert Park (California) | 5,793.75 mi (9,324.13 km) |
| Opfikon to Rolla (Missouri) | 4,772.18 mi (7,680.08 km) |
| Opfikon to Rolling Meadows (Illinois) | 4,432.93 mi (7,134.11 km) |
| Opfikon to Roma (Texas) | 5,643.33 mi (9,082.06 km) |
| Opfikon to Rome (Georgia) | 4,683.50 mi (7,537.37 km) |
| Opfikon to Rome (New York) | 3,887.14 mi (6,255.75 km) |
