| Alliance to Sesimbra | 3,720.74 mi (5,987.95 km) |
| Alliance to Setubal | 3,728.16 mi (5,999.90 km) |
| Alliance to Sever do Vouga | 3,685.11 mi (5,930.61 km) |
| Alliance to Silves | 3,792.95 mi (6,104.16 km) |
| Alliance to Sines | 3,747.58 mi (6,031.15 km) |
| Alliance to Sintra | 3,695.72 mi (5,947.68 km) |
| Alliance to Sobrado de Paiva | 3,680.79 mi (5,923.66 km) |
| Alliance to Sobral de Monte Agraco | 3,700.26 mi (5,955.00 km) |
| Alliance to Soure | 3,693.23 mi (5,943.68 km) |
| Alliance to Tabua | 3,712.35 mi (5,974.45 km) |
| Alliance to Tavira | 3,833.50 mi (6,169.43 km) |
| Alliance to Tomar | 3,717.36 mi (5,982.51 km) |
| Alliance to Tondela | 3,705.02 mi (5,962.66 km) |
| Alliance to Torre de Moncorvo | 3,728.84 mi (6,000.98 km) |
| Alliance to Torres Novas | 3,715.93 mi (5,980.21 km) |
