| Slidell to Sesimbra | 4,489.09 mi (7,224.49 km) |
| Slidell to Setubal | 4,497.72 mi (7,238.37 km) |
| Slidell to Sever do Vouga | 4,472.89 mi (7,198.42 km) |
| Slidell to Silves | 4,553.05 mi (7,327.43 km) |
| Slidell to Sines | 4,512.66 mi (7,262.43 km) |
| Slidell to Sintra | 4,466.13 mi (7,187.53 km) |
| Slidell to Sobrado de Paiva | 4,471.00 mi (7,195.39 km) |
| Slidell to Sobral de Monte Agraco | 4,473.03 mi (7,198.64 km) |
| Slidell to Soure | 4,475.28 mi (7,202.26 km) |
| Slidell to Tabua | 4,498.17 mi (7,239.10 km) |
| Slidell to Tavira | 4,595.36 mi (7,395.51 km) |
| Slidell to Tomar | 4,496.52 mi (7,236.44 km) |
| Slidell to Tondela | 4,491.87 mi (7,228.97 km) |
| Slidell to Torre de Moncorvo | 4,522.81 mi (7,278.76 km) |
| Slidell to Torres Novas | 4,493.78 mi (7,232.03 km) |
