| Seymour to Sesimbra | 4,006.95 mi (6,448.57 km) |
| Seymour to Setubal | 4,014.44 mi (6,460.61 km) |
| Seymour to Sever do Vouga | 3,971.93 mi (6,392.20 km) |
| Seymour to Silves | 4,078.76 mi (6,564.13 km) |
| Seymour to Sines | 4,033.65 mi (6,491.53 km) |
| Seymour to Sintra | 3,982.02 mi (6,408.44 km) |
| Seymour to Sobrado de Paiva | 3,967.64 mi (6,385.30 km) |
| Seymour to Sobral de Monte Agraco | 3,986.67 mi (6,415.92 km) |
| Seymour to Soure | 3,979.94 mi (6,405.09 km) |
| Seymour to Tabua | 3,999.14 mi (6,435.99 km) |
| Seymour to Tavira | 4,119.43 mi (6,629.58 km) |
| Seymour to Tomar | 4,003.99 mi (6,443.80 km) |
| Seymour to Tondela | 3,991.83 mi (6,424.23 km) |
| Seymour to Torre de Moncorvo | 4,015.71 mi (6,462.66 km) |
| Seymour to Torres Novas | 4,002.52 mi (6,441.43 km) |
