| Guaynabo to Smyrna (Delaware) | 1,552.53 mi (2,498.56 km) |
| Guaynabo to Smyrna (Georgia) | 1,559.31 mi (2,509.47 km) |
| Guaynabo to Smyrna (Tennessee) | 1,739.20 mi (2,798.97 km) |
| Guaynabo to Snellville (Georgia) | 1,536.18 mi (2,472.24 km) |
| Guaynabo to Snoqualmie (Washington) | 3,703.25 mi (5,959.80 km) |
| Guaynabo to Snyder (Texas) | 2,369.91 mi (3,814.00 km) |
| Guaynabo to Socastee (South Carolina) | 1,323.59 mi (2,130.12 km) |
| Guaynabo to Socorro (Texas) | 2,657.55 mi (4,276.92 km) |
| Guaynabo to Soddy-Daisy (Tennessee) | 1,649.30 mi (2,654.29 km) |
| Guaynabo to Solana Beach (California) | 3,306.13 mi (5,320.70 km) |
| Guaynabo to Soledad (California) | 3,557.38 mi (5,725.04 km) |
| Guaynabo to Solon (Ohio) | 1,828.96 mi (2,943.43 km) |
| Guaynabo to Somers Point (New Jersey) | 1,533.10 mi (2,467.28 km) |
| Guaynabo to Somerset (Kentucky) | 1,710.48 mi (2,752.76 km) |
| Guaynabo to Somerset (New Jersey) | 1,607.87 mi (2,587.62 km) |
