| Houthulst to Setubal | 1,035.51 mi (1,666.49 km) |
| Houthulst to Sever do Vouga | 890.98 mi (1,433.90 km) |
| Houthulst to Silves | 1,105.05 mi (1,778.41 km) |
| Houthulst to Sines | 1,069.03 mi (1,720.44 km) |
| Houthulst to Sintra | 1,032.84 mi (1,662.19 km) |
| Houthulst to Sobrado de Paiva | 870.86 mi (1,401.52 km) |
| Houthulst to Sobral de Monte Agraco | 1,013.31 mi (1,630.77 km) |
| Houthulst to Soure | 938.19 mi (1,509.88 km) |
| Houthulst to Tabua | 903.04 mi (1,453.30 km) |
| Houthulst to Tavira | 1,090.35 mi (1,754.75 km) |
| Houthulst to Tomar | 958.53 mi (1,542.61 km) |
| Houthulst to Tondela | 895.42 mi (1,441.04 km) |
| Houthulst to Torre de Moncorvo | 828.99 mi (1,334.13 km) |
| Houthulst to Torres Novas | 969.63 mi (1,560.46 km) |
| Houthulst to Torres Vedras | 1,012.69 mi (1,629.77 km) |
