| Olbia to Smyrna (Delaware) | 4,305.37 mi (6,928.82 km) |
| Olbia to Smyrna (Georgia) | 4,924.74 mi (7,925.60 km) |
| Olbia to Smyrna (Tennessee) | 4,926.91 mi (7,929.10 km) |
| Olbia to Snellville (Georgia) | 4,901.58 mi (7,888.33 km) |
| Olbia to Snoqualmie (Washington) | 5,638.01 mi (9,073.50 km) |
| Olbia to Snyder (Texas) | 5,693.43 mi (9,162.69 km) |
| Olbia to Socastee (South Carolina) | 4,676.81 mi (7,526.60 km) |
| Olbia to Socorro (Texas) | 5,965.03 mi (9,599.78 km) |
| Olbia to Soddy-Daisy (Tennessee) | 4,896.30 mi (7,879.84 km) |
| Olbia to Solana Beach (California) | 6,307.94 mi (10,151.65 km) |
| Olbia to Soledad (California) | 6,251.99 mi (10,061.61 km) |
| Olbia to Solon (Ohio) | 4,486.27 mi (7,219.95 km) |
| Olbia to Somers Point (New Jersey) | 4,258.89 mi (6,854.02 km) |
| Olbia to Somerset (Kentucky) | 4,795.63 mi (7,717.82 km) |
| Olbia to Somerset (New Jersey) | 4,211.65 mi (6,778.00 km) |
