| Seraing to Setubal | 1,089.86 mi (1,753.96 km) |
| Seraing to Sever do Vouga | 951.79 mi (1,531.76 km) |
| Seraing to Silves | 1,152.86 mi (1,855.35 km) |
| Seraing to Sines | 1,121.27 mi (1,804.50 km) |
| Seraing to Sintra | 1,090.32 mi (1,754.70 km) |
| Seraing to Sobrado de Paiva | 932.56 mi (1,500.81 km) |
| Seraing to Sobral de Monte Agraco | 1,070.60 mi (1,722.96 km) |
| Seraing to Soure | 997.28 mi (1,604.97 km) |
| Seraing to Tabua | 960.69 mi (1,546.08 km) |
| Seraing to Tavira | 1,134.32 mi (1,825.51 km) |
| Seraing to Tomar | 1,014.83 mi (1,633.21 km) |
| Seraing to Tondela | 953.99 mi (1,535.30 km) |
| Seraing to Torre de Moncorvo | 886.11 mi (1,426.05 km) |
| Seraing to Torres Novas | 1,025.92 mi (1,651.06 km) |
| Seraing to Torres Vedras | 1,070.72 mi (1,723.15 km) |
