| Sintra to Storm Lake (Iowa) | 4,297.63 mi (6,916.36 km) |
| Sintra to Storrs (Connecticut) | 3,243.72 mi (5,220.26 km) |
| Sintra to Stoughton (Wisconsin) | 4,018.93 mi (6,467.85 km) |
| Sintra to Stow (Ohio) | 3,703.70 mi (5,960.53 km) |
| Sintra to Streamwood (Illinois) | 3,997.68 mi (6,433.64 km) |
| Sintra to Streator (Illinois) | 4,055.02 mi (6,525.92 km) |
| Sintra to Streetsboro (Ohio) | 3,697.75 mi (5,950.96 km) |
| Sintra to Strongsville (Ohio) | 3,719.01 mi (5,985.17 km) |
| Sintra to Stuart (Florida) | 4,082.68 mi (6,570.44 km) |
| Sintra to Stuarts Draft (Virginia) | 3,673.54 mi (5,911.99 km) |
| Sintra to Sturgis (Michigan) | 3,875.42 mi (6,236.88 km) |
| Sintra to Suamico (Wisconsin) | 3,917.24 mi (6,304.19 km) |
| Sintra to Sudley (Virginia) | 3,575.92 mi (5,754.88 km) |
| Sintra to Suffern (New York) | 3,351.92 mi (5,394.40 km) |
| Sintra to Suffolk (Virginia) | 3,590.81 mi (5,778.86 km) |
