| Boom to Setubal | 1,080.67 mi (1,739.17 km) |
| Boom to Sever do Vouga | 938.65 mi (1,510.61 km) |
| Boom to Silves | 1,147.48 mi (1,846.70 km) |
| Boom to Sines | 1,113.33 mi (1,791.73 km) |
| Boom to Sintra | 1,079.30 mi (1,736.97 km) |
| Boom to Sobrado de Paiva | 918.86 mi (1,478.77 km) |
| Boom to Sobral de Monte Agraco | 1,059.68 mi (1,705.38 km) |
| Boom to Soure | 985.21 mi (1,585.55 km) |
| Boom to Tabua | 949.41 mi (1,527.93 km) |
| Boom to Tavira | 1,131.08 mi (1,820.30 km) |
| Boom to Tomar | 1,004.41 mi (1,616.45 km) |
| Boom to Tondela | 942.17 mi (1,516.27 km) |
| Boom to Torre de Moncorvo | 875.03 mi (1,408.23 km) |
| Boom to Torres Novas | 1,015.52 mi (1,634.33 km) |
| Boom to Torres Vedras | 1,059.36 mi (1,704.88 km) |
