| Harlow to Sesimbra | 1,023.47 mi (1,647.11 km) |
| Harlow to Setubal | 1,014.01 mi (1,631.90 km) |
| Harlow to Sever do Vouga | 863.02 mi (1,388.89 km) |
| Harlow to Silves | 1,091.29 mi (1,756.26 km) |
| Harlow to Sines | 1,049.91 mi (1,689.66 km) |
| Harlow to Sintra | 1,007.12 mi (1,620.80 km) |
| Harlow to Sobrado de Paiva | 842.03 mi (1,355.12 km) |
| Harlow to Sobral de Monte Agraco | 988.15 mi (1,590.27 km) |
| Harlow to Soure | 911.77 mi (1,467.36 km) |
| Harlow to Tabua | 879.24 mi (1,415.00 km) |
| Harlow to Tavira | 1,081.78 mi (1,740.95 km) |
| Harlow to Tomar | 935.60 mi (1,505.71 km) |
| Harlow to Tondela | 870.49 mi (1,400.92 km) |
| Harlow to Torre de Moncorvo | 807.48 mi (1,299.52 km) |
| Harlow to Torres Novas | 946.52 mi (1,523.27 km) |
