| Olbia to Rancho Cordova (California) | 6,128.44 mi (9,862.77 km) |
| Olbia to Rancho Cucamonga (California) | 6,256.47 mi (10,068.82 km) |
| Olbia to Rancho Mirage (California) | 6,236.61 mi (10,036.86 km) |
| Olbia to Rancho Palos Verdes (California) | 6,304.28 mi (10,145.76 km) |
| Olbia to Rancho San Diego (California) | 6,308.78 mi (10,153.00 km) |
| Olbia to Rancho Santa Margarita (California) | 6,284.75 mi (10,114.33 km) |
| Olbia to Randallstown (Maryland) | 4,356.60 mi (7,011.28 km) |
| Olbia to Rantoul (Illinois) | 4,816.02 mi (7,750.64 km) |
| Olbia to Rapid City (South Dakota) | 5,234.98 mi (8,424.89 km) |
| Olbia to Ravenna (Ohio) | 4,486.28 mi (7,219.97 km) |
| Olbia to Raymondville (Texas) | 5,857.22 mi (9,426.28 km) |
| Olbia to Raymore (Missouri) | 5,142.77 mi (8,276.49 km) |
| Olbia to Raytown (Missouri) | 5,134.43 mi (8,263.07 km) |
| Olbia to Reading (Ohio) | 4,700.88 mi (7,565.33 km) |
| Olbia to Reading (Pennsylvania) | 4,281.88 mi (6,891.02 km) |
