| Penafiel to Smyrna (Delaware) | 3,460.49 mi (5,569.13 km) |
| Penafiel to Smyrna (Georgia) | 4,073.24 mi (6,555.25 km) |
| Penafiel to Smyrna (Tennessee) | 4,095.13 mi (6,590.47 km) |
| Penafiel to Snellville (Georgia) | 4,048.37 mi (6,515.22 km) |
| Penafiel to Snoqualmie (Washington) | 5,082.98 mi (8,180.27 km) |
| Penafiel to Snyder (Texas) | 4,899.62 mi (7,885.18 km) |
| Penafiel to Socastee (South Carolina) | 3,807.54 mi (6,127.64 km) |
| Penafiel to Socorro (Texas) | 5,190.76 mi (8,353.72 km) |
| Penafiel to Soddy-Daisy (Tennessee) | 4,055.32 mi (6,526.40 km) |
| Penafiel to Solana Beach (California) | 5,608.01 mi (9,025.22 km) |
| Penafiel to Soledad (California) | 5,605.21 mi (9,020.71 km) |
| Penafiel to Solon (Ohio) | 3,675.40 mi (5,914.99 km) |
| Penafiel to Somers Point (New Jersey) | 3,411.27 mi (5,489.91 km) |
| Penafiel to Somerset (Kentucky) | 3,964.43 mi (6,380.13 km) |
| Penafiel to Somerset (New Jersey) | 3,372.29 mi (5,427.17 km) |
