| San Juan to Storm Lake (Iowa) | 2,388.18 mi (3,843.40 km) |
| San Juan to Storrs (Connecticut) | 1,658.07 mi (2,668.41 km) |
| San Juan to Stoughton (Wisconsin) | 2,167.82 mi (3,488.77 km) |
| San Juan to Stow (Ohio) | 1,817.42 mi (2,924.86 km) |
| San Juan to Streamwood (Illinois) | 2,086.14 mi (3,357.31 km) |
| San Juan to Streator (Illinois) | 2,067.74 mi (3,327.71 km) |
| San Juan to Streetsboro (Ohio) | 1,818.40 mi (2,926.44 km) |
| San Juan to Strongsville (Ohio) | 1,836.94 mi (2,956.27 km) |
| San Juan to Stuart (Florida) | 1,087.46 mi (1,750.09 km) |
| San Juan to Stuarts Draft (Virginia) | 1,565.17 mi (2,518.90 km) |
| San Juan to Sturgis (Michigan) | 1,977.90 mi (3,183.12 km) |
| San Juan to Suamico (Wisconsin) | 2,213.03 mi (3,561.52 km) |
| San Juan to Sudley (Virginia) | 1,567.11 mi (2,522.02 km) |
| San Juan to Suffern (New York) | 1,640.72 mi (2,640.49 km) |
| San Juan to Suffolk (Virginia) | 1,418.23 mi (2,282.42 km) |
