| San Marcos to Sesimbra | 5,676.85 mi (9,136.01 km) |
| San Marcos to Setubal | 5,682.52 mi (9,145.14 km) |
| San Marcos to Sever do Vouga | 5,613.85 mi (9,034.62 km) |
| San Marcos to Silves | 5,757.73 mi (9,266.16 km) |
| San Marcos to Sines | 5,707.26 mi (9,184.94 km) |
| San Marcos to Sintra | 5,649.73 mi (9,092.36 km) |
| San Marcos to Sobrado de Paiva | 5,605.65 mi (9,021.43 km) |
| San Marcos to Sobral de Monte Agraco | 5,650.99 mi (9,094.39 km) |
| San Marcos to Soure | 5,630.77 mi (9,061.85 km) |
| San Marcos to Tabua | 5,643.48 mi (9,082.30 km) |
| San Marcos to Tavira | 5,795.25 mi (9,326.55 km) |
| San Marcos to Tomar | 5,658.56 mi (9,106.58 km) |
| San Marcos to Tondela | 5,634.71 mi (9,068.19 km) |
| San Marcos to Torre de Moncorvo | 5,645.82 mi (9,086.07 km) |
| San Marcos to Torres Novas | 5,659.10 mi (9,107.44 km) |
