| Ada to Sesimbra | 1,571.60 mi (2,529.25 km) |
| Ada to Setubal | 1,559.11 mi (2,509.14 km) |
| Ada to Sever do Vouga | 1,467.51 mi (2,361.73 km) |
| Ada to Silves | 1,583.29 mi (2,548.06 km) |
| Ada to Sines | 1,576.71 mi (2,537.47 km) |
| Ada to Sintra | 1,573.89 mi (2,532.94 km) |
| Ada to Sobrado de Paiva | 1,454.61 mi (2,340.97 km) |
| Ada to Sobral de Monte Agraco | 1,555.67 mi (2,503.62 km) |
| Ada to Soure | 1,499.60 mi (2,413.37 km) |
| Ada to Tabua | 1,461.69 mi (2,352.37 km) |
| Ada to Tavira | 1,548.70 mi (2,492.39 km) |
| Ada to Tomar | 1,502.55 mi (2,418.13 km) |
| Ada to Tondela | 1,459.88 mi (2,349.45 km) |
| Ada to Torre de Moncorvo | 1,395.69 mi (2,246.15 km) |
| Ada to Torres Novas | 1,512.18 mi (2,433.62 km) |
