| Opovo to Sesimbra | 1,579.24 mi (2,541.54 km) |
| Opovo to Setubal | 1,566.74 mi (2,521.42 km) |
| Opovo to Sever do Vouga | 1,479.66 mi (2,381.28 km) |
| Opovo to Silves | 1,587.69 mi (2,555.14 km) |
| Opovo to Sines | 1,583.11 mi (2,547.76 km) |
| Opovo to Sintra | 1,582.53 mi (2,546.84 km) |
| Opovo to Sobrado de Paiva | 1,467.39 mi (2,361.53 km) |
| Opovo to Sobral de Monte Agraco | 1,564.59 mi (2,517.96 km) |
| Opovo to Soure | 1,510.38 mi (2,430.72 km) |
| Opovo to Tabua | 1,472.73 mi (2,370.12 km) |
| Opovo to Tavira | 1,552.18 mi (2,497.99 km) |
| Opovo to Tomar | 1,512.15 mi (2,433.57 km) |
| Opovo to Tondela | 1,471.32 mi (2,367.86 km) |
| Opovo to Torre de Moncorvo | 1,408.07 mi (2,266.07 km) |
| Opovo to Torres Novas | 1,521.58 mi (2,448.74 km) |
