| Astoria to Sesimbra | 5,332.13 mi (8,581.24 km) |
| Astoria to Setubal | 5,335.09 mi (8,586.00 km) |
| Astoria to Sever do Vouga | 5,236.41 mi (8,427.18 km) |
| Astoria to Silves | 5,421.87 mi (8,725.66 km) |
| Astoria to Sines | 5,366.21 mi (8,636.08 km) |
| Astoria to Sintra | 5,303.32 mi (8,534.87 km) |
| Astoria to Sobrado de Paiva | 5,223.94 mi (8,407.11 km) |
| Astoria to Sobral de Monte Agraco | 5,300.01 mi (8,529.55 km) |
| Astoria to Soure | 5,263.43 mi (8,470.67 km) |
| Astoria to Tabua | 5,267.54 mi (8,477.28 km) |
| Astoria to Tavira | 5,453.24 mi (8,776.14 km) |
| Astoria to Tomar | 5,294.62 mi (8,520.87 km) |
| Astoria to Tondela | 5,257.43 mi (8,461.01 km) |
| Astoria to Torre de Moncorvo | 5,252.93 mi (8,453.77 km) |
| Astoria to Torres Novas | 5,297.68 mi (8,525.78 km) |
