| Ronkonkoma to Sesimbra | 3,333.38 mi (5,364.56 km) |
| Ronkonkoma to Setubal | 3,341.31 mi (5,377.32 km) |
| Ronkonkoma to Sever do Vouga | 3,306.42 mi (5,321.17 km) |
| Ronkonkoma to Silves | 3,402.54 mi (5,475.86 km) |
| Ronkonkoma to Sines | 3,358.98 mi (5,405.75 km) |
| Ronkonkoma to Sintra | 3,309.15 mi (5,325.57 km) |
| Ronkonkoma to Sobrado de Paiva | 3,303.33 mi (5,316.20 km) |
| Ronkonkoma to Sobral de Monte Agraco | 3,314.69 mi (5,334.48 km) |
| Ronkonkoma to Soure | 3,311.78 mi (5,329.80 km) |
| Ronkonkoma to Tabua | 3,332.74 mi (5,363.53 km) |
| Ronkonkoma to Tavira | 3,443.83 mi (5,542.30 km) |
| Ronkonkoma to Tomar | 3,334.62 mi (5,366.56 km) |
| Ronkonkoma to Tondela | 3,325.91 mi (5,352.54 km) |
| Ronkonkoma to Torre de Moncorvo | 3,353.42 mi (5,396.81 km) |
| Ronkonkoma to Torres Novas | 3,332.60 mi (5,363.30 km) |
