| Oswego to Sesimbra | 4,041.03 mi (6,503.42 km) |
| Oswego to Setubal | 4,047.83 mi (6,514.35 km) |
| Oswego to Sever do Vouga | 3,995.33 mi (6,429.87 km) |
| Oswego to Silves | 4,116.73 mi (6,625.23 km) |
| Oswego to Sines | 4,069.30 mi (6,548.90 km) |
| Oswego to Sintra | 4,015.15 mi (6,461.76 km) |
| Oswego to Sobrado de Paiva | 3,989.63 mi (6,420.69 km) |
| Oswego to Sobral de Monte Agraco | 4,018.49 mi (6,467.13 km) |
| Oswego to Soure | 4,006.63 mi (6,448.04 km) |
| Oswego to Tabua | 4,023.53 mi (6,475.24 km) |
| Oswego to Tavira | 4,156.25 mi (6,688.84 km) |
| Oswego to Tomar | 4,032.16 mi (6,489.14 km) |
| Oswego to Tondela | 4,015.66 mi (6,462.59 km) |
| Oswego to Torre de Moncorvo | 4,035.14 mi (6,493.93 km) |
| Oswego to Torres Novas | 4,031.44 mi (6,487.98 km) |
