| Skien to Setubal | 1,644.33 mi (2,646.30 km) |
| Skien to Sever do Vouga | 1,493.82 mi (2,404.08 km) |
| Skien to Silves | 1,719.87 mi (2,767.86 km) |
| Skien to Sines | 1,679.85 mi (2,703.45 km) |
| Skien to Sintra | 1,637.88 mi (2,635.92 km) |
| Skien to Sobrado de Paiva | 1,472.86 mi (2,370.34 km) |
| Skien to Sobral de Monte Agraco | 1,618.87 mi (2,605.31 km) |
| Skien to Soure | 1,542.53 mi (2,482.46 km) |
| Skien to Tabua | 1,509.73 mi (2,429.67 km) |
| Skien to Tavira | 1,708.35 mi (2,749.33 km) |
| Skien to Tomar | 1,566.04 mi (2,520.30 km) |
| Skien to Tondela | 1,501.09 mi (2,415.78 km) |
| Skien to Torre de Moncorvo | 1,437.50 mi (2,313.43 km) |
| Skien to Torres Novas | 1,576.99 mi (2,537.92 km) |
| Skien to Torres Vedras | 1,617.31 mi (2,602.81 km) |
