| Oristano to Ridgeland (Mississippi) | 5,236.14 mi (8,426.76 km) |
| Oristano to Ridgewood (New Jersey) | 4,171.75 mi (6,713.78 km) |
| Oristano to Rifle (Colorado) | 5,639.73 mi (9,076.27 km) |
| Oristano to Rincon (Georgia) | 4,825.19 mi (7,765.40 km) |
| Oristano to Ringwood (New Jersey) | 4,174.99 mi (6,719.00 km) |
| Oristano to Río Grande (Puerto Rico) | 4,599.37 mi (7,401.98 km) |
| Oristano to Rio Grande City (Texas) | 5,903.75 mi (9,501.17 km) |
| Oristano to Rio Linda (California) | 6,155.65 mi (9,906.55 km) |
| Oristano to Rio Rancho (New Mexico) | 5,809.51 mi (9,349.51 km) |
| Oristano to Rio Rico (Arizona) | 6,169.82 mi (9,929.36 km) |
| Oristano to Ripon (California) | 6,198.54 mi (9,975.59 km) |
| Oristano to River Edge (New Jersey) | 4,170.22 mi (6,711.31 km) |
| Oristano to River Falls (Wisconsin) | 4,816.54 mi (7,751.47 km) |
| Oristano to River Forest (Illinois) | 4,740.84 mi (7,629.64 km) |
| Oristano to River Grove (Illinois) | 4,740.45 mi (7,629.02 km) |
