| Opfikon to Ridgeland (Mississippi) | 4,977.40 mi (8,010.35 km) |
| Opfikon to Ridgewood (New Jersey) | 3,922.07 mi (6,311.96 km) |
| Opfikon to Rifle (Colorado) | 5,269.71 mi (8,480.79 km) |
| Opfikon to Rincon (Georgia) | 4,608.88 mi (7,417.27 km) |
| Opfikon to Ringwood (New Jersey) | 3,923.72 mi (6,314.62 km) |
| Opfikon to Río Grande (Puerto Rico) | 4,568.60 mi (7,352.45 km) |
| Opfikon to Rio Grande City (Texas) | 5,637.75 mi (9,073.09 km) |
| Opfikon to Rio Linda (California) | 5,738.61 mi (9,235.40 km) |
| Opfikon to Rio Rancho (New Mexico) | 5,462.49 mi (8,791.02 km) |
| Opfikon to Rio Rico (Arizona) | 5,820.83 mi (9,367.73 km) |
| Opfikon to Ripon (California) | 5,785.50 mi (9,310.86 km) |
| Opfikon to River Edge (New Jersey) | 3,921.25 mi (6,310.64 km) |
| Opfikon to River Falls (Wisconsin) | 4,474.31 mi (7,200.70 km) |
| Opfikon to River Forest (Illinois) | 4,433.30 mi (7,134.70 km) |
| Opfikon to River Grove (Illinois) | 4,432.66 mi (7,133.68 km) |
