| Twin Rivers to Sesimbra | 3,413.58 mi (5,493.62 km) |
| Twin Rivers to Setubal | 3,421.54 mi (5,506.44 km) |
| Twin Rivers to Sever do Vouga | 3,387.09 mi (5,450.99 km) |
| Twin Rivers to Silves | 3,482.49 mi (5,604.53 km) |
| Twin Rivers to Sines | 3,439.08 mi (5,534.67 km) |
| Twin Rivers to Sintra | 3,389.41 mi (5,454.73 km) |
| Twin Rivers to Sobrado de Paiva | 3,384.04 mi (5,446.09 km) |
| Twin Rivers to Sobral de Monte Agraco | 3,395.01 mi (5,463.75 km) |
| Twin Rivers to Soure | 3,392.33 mi (5,459.43 km) |
| Twin Rivers to Tabua | 3,413.37 mi (5,493.29 km) |
| Twin Rivers to Tavira | 3,523.84 mi (5,671.07 km) |
| Twin Rivers to Tomar | 3,415.11 mi (5,496.08 km) |
| Twin Rivers to Tondela | 3,406.56 mi (5,482.33 km) |
| Twin Rivers to Torre de Moncorvo | 3,434.19 mi (5,526.80 km) |
| Twin Rivers to Torres Novas | 3,413.05 mi (5,492.78 km) |
