| Opfikon to Red Bank (New Jersey) | 3,946.42 mi (6,351.15 km) |
| Opfikon to Red Bank (Tennessee) | 4,648.16 mi (7,480.49 km) |
| Opfikon to Red Bluff (California) | 5,673.04 mi (9,129.87 km) |
| Opfikon to Red Hill (South Carolina) | 4,444.58 mi (7,152.86 km) |
| Opfikon to Red Oak (Texas) | 5,238.82 mi (8,431.07 km) |
| Opfikon to Red Wing (Minnesota) | 4,486.67 mi (7,220.60 km) |
| Opfikon to Redan (Georgia) | 4,665.63 mi (7,508.61 km) |
| Opfikon to Redding (California) | 5,652.96 mi (9,097.56 km) |
| Opfikon to Redland (Maryland) | 4,127.08 mi (6,641.89 km) |
| Opfikon to Redlands (California) | 5,881.37 mi (9,465.15 km) |
| Opfikon to Redmond (Oregon) | 5,404.06 mi (8,696.99 km) |
| Opfikon to Redmond (Washington) | 5,227.84 mi (8,413.39 km) |
| Opfikon to Redondo Beach (California) | 5,930.32 mi (9,543.93 km) |
| Opfikon to Redwood City (California) | 5,830.71 mi (9,383.62 km) |
| Opfikon to Reedley (California) | 5,803.36 mi (9,339.60 km) |
