| Estoril to Smyrna (Delaware) | 3,470.99 mi (5,586.03 km) |
| Estoril to Smyrna (Georgia) | 4,077.39 mi (6,561.92 km) |
| Estoril to Smyrna (Tennessee) | 4,109.08 mi (6,612.93 km) |
| Estoril to Snellville (Georgia) | 4,051.70 mi (6,520.59 km) |
| Estoril to Snoqualmie (Washington) | 5,176.85 mi (8,331.34 km) |
| Estoril to Snyder (Texas) | 4,926.43 mi (7,928.33 km) |
| Estoril to Socastee (South Carolina) | 3,802.63 mi (6,119.74 km) |
| Estoril to Socorro (Texas) | 5,223.72 mi (8,406.76 km) |
| Estoril to Soddy-Daisy (Tennessee) | 4,064.97 mi (6,541.93 km) |
| Estoril to Solana Beach (California) | 5,663.22 mi (9,114.07 km) |
| Estoril to Soledad (California) | 5,674.97 mi (9,132.99 km) |
| Estoril to Solon (Ohio) | 3,700.88 mi (5,956.00 km) |
| Estoril to Somers Point (New Jersey) | 3,420.59 mi (5,504.90 km) |
| Estoril to Somerset (Kentucky) | 3,979.25 mi (6,403.98 km) |
| Estoril to Somerset (New Jersey) | 3,386.10 mi (5,449.40 km) |
