| Piraeus to Setubal | 1,757.17 mi (2,827.90 km) |
| Piraeus to Sever do Vouga | 1,712.02 mi (2,755.24 km) |
| Piraeus to Silves | 1,749.32 mi (2,815.25 km) |
| Piraeus to Sines | 1,762.20 mi (2,835.98 km) |
| Piraeus to Sintra | 1,780.70 mi (2,865.77 km) |
| Piraeus to Sobrado de Paiva | 1,705.47 mi (2,744.70 km) |
| Piraeus to Sobral de Monte Agraco | 1,765.95 mi (2,842.02 km) |
| Piraeus to Soure | 1,729.99 mi (2,784.16 km) |
| Piraeus to Tabua | 1,696.32 mi (2,729.96 km) |
| Piraeus to Tavira | 1,707.73 mi (2,748.32 km) |
| Piraeus to Tomar | 1,721.86 mi (2,771.06 km) |
| Piraeus to Tondela | 1,698.30 mi (2,733.15 km) |
| Piraeus to Torre de Moncorvo | 1,645.98 mi (2,648.95 km) |
| Piraeus to Torres Novas | 1,729.10 mi (2,782.72 km) |
| Piraeus to Torres Vedras | 1,771.41 mi (2,850.81 km) |
