| Omaha to Sesimbra | 4,408.88 mi (7,095.41 km) |
| Omaha to Setubal | 4,415.19 mi (7,105.56 km) |
| Omaha to Sever do Vouga | 4,355.71 mi (7,009.83 km) |
| Omaha to Silves | 4,486.99 mi (7,221.11 km) |
| Omaha to Sines | 4,438.13 mi (7,142.49 km) |
| Omaha to Sintra | 4,382.42 mi (7,052.82 km) |
| Omaha to Sobrado de Paiva | 4,348.96 mi (6,998.98 km) |
| Omaha to Sobral de Monte Agraco | 4,384.85 mi (7,056.73 km) |
| Omaha to Soure | 4,369.38 mi (7,031.84 km) |
| Omaha to Tabua | 4,384.55 mi (7,056.25 km) |
| Omaha to Tavira | 4,525.66 mi (7,283.34 km) |
| Omaha to Tomar | 4,395.92 mi (7,074.54 km) |
| Omaha to Tondela | 4,376.30 mi (7,042.97 km) |
| Omaha to Torre de Moncorvo | 4,392.38 mi (7,068.85 km) |
| Omaha to Torres Novas | 4,395.73 mi (7,074.24 km) |
