| Ponca City to Sesimbra | 4,615.04 mi (7,427.19 km) |
| Ponca City to Setubal | 4,622.06 mi (7,438.49 km) |
| Ponca City to Sever do Vouga | 4,572.19 mi (7,358.24 km) |
| Ponca City to Silves | 4,689.43 mi (7,546.91 km) |
| Ponca City to Sines | 4,642.79 mi (7,471.85 km) |
| Ponca City to Sintra | 4,589.44 mi (7,386.00 km) |
| Ponca City to Sobrado de Paiva | 4,566.78 mi (7,349.53 km) |
| Ponca City to Sobral de Monte Agraco | 4,593.19 mi (7,392.03 km) |
| Ponca City to Soure | 4,582.73 mi (7,375.20 km) |
| Ponca City to Tabua | 4,600.19 mi (7,403.28 km) |
| Ponca City to Tavira | 4,729.38 mi (7,611.21 km) |
| Ponca City to Tomar | 4,607.90 mi (7,415.70 km) |
| Ponca City to Tondela | 4,592.44 mi (7,390.82 km) |
| Ponca City to Torre de Moncorvo | 4,612.79 mi (7,423.56 km) |
| Ponca City to Torres Novas | 4,606.98 mi (7,414.22 km) |
