| Opfikon to Romeoville (Illinois) | 4,456.19 mi (7,171.54 km) |
| Opfikon to Romulus (Michigan) | 4,245.23 mi (6,832.04 km) |
| Opfikon to Ronkonkoma (New York) | 3,887.94 mi (6,257.04 km) |
| Opfikon to Roosevelt (New York) | 3,912.35 mi (6,296.33 km) |
| Opfikon to Rosamond (California) | 5,866.85 mi (9,441.78 km) |
| Opfikon to Rosaryville (Maryland) | 4,129.49 mi (6,645.77 km) |
| Opfikon to Roscoe (Illinois) | 4,454.21 mi (7,168.36 km) |
| Opfikon to Rose Hill (Virginia) | 4,140.47 mi (6,663.44 km) |
| Opfikon to Roseburg (Oregon) | 5,521.75 mi (8,886.40 km) |
| Opfikon to Rosedale (California) | 5,866.69 mi (9,441.53 km) |
| Opfikon to Rosedale (Maryland) | 4,092.06 mi (6,585.54 km) |
| Opfikon to Roselle (Illinois) | 4,439.58 mi (7,144.81 km) |
| Opfikon to Roselle (New Jersey) | 3,941.86 mi (6,343.81 km) |
| Opfikon to Roselle Park (New Jersey) | 3,941.62 mi (6,343.43 km) |
| Opfikon to Rosemead (California) | 5,908.91 mi (9,509.48 km) |
