| Central Islip to Sesimbra | 3,337.29 mi (5,370.85 km) |
| Central Islip to Setubal | 3,345.22 mi (5,383.61 km) |
| Central Islip to Sever do Vouga | 3,310.33 mi (5,327.46 km) |
| Central Islip to Silves | 3,406.45 mi (5,482.15 km) |
| Central Islip to Sines | 3,362.89 mi (5,412.04 km) |
| Central Islip to Sintra | 3,313.06 mi (5,331.86 km) |
| Central Islip to Sobrado de Paiva | 3,307.24 mi (5,322.49 km) |
| Central Islip to Sobral de Monte Agraco | 3,318.60 mi (5,340.78 km) |
| Central Islip to Soure | 3,315.70 mi (5,336.10 km) |
| Central Islip to Tabua | 3,336.65 mi (5,369.82 km) |
| Central Islip to Tavira | 3,447.74 mi (5,548.59 km) |
| Central Islip to Tomar | 3,338.53 mi (5,372.85 km) |
| Central Islip to Tondela | 3,329.82 mi (5,358.83 km) |
| Central Islip to Torre de Moncorvo | 3,357.33 mi (5,403.10 km) |
| Central Islip to Torres Novas | 3,336.51 mi (5,369.60 km) |
