| Opfikon to Sesimbra | 1,084.19 mi (1,744.83 km) |
| Opfikon to Setubal | 1,072.07 mi (1,725.32 km) |
| Opfikon to Sever do Vouga | 956.59 mi (1,539.48 km) |
| Opfikon to Silves | 1,116.54 mi (1,796.89 km) |
| Opfikon to Sines | 1,096.96 mi (1,765.39 km) |
| Opfikon to Sintra | 1,080.35 mi (1,738.66 km) |
| Opfikon to Sobrado de Paiva | 940.64 mi (1,513.81 km) |
| Opfikon to Sobral de Monte Agraco | 1,060.96 mi (1,707.45 km) |
| Opfikon to Soure | 995.45 mi (1,602.02 km) |
| Opfikon to Tabua | 957.07 mi (1,540.25 km) |
| Opfikon to Tavira | 1,089.44 mi (1,753.28 km) |
| Opfikon to Tomar | 1,005.16 mi (1,617.64 km) |
| Opfikon to Tondela | 953.03 mi (1,533.76 km) |
| Opfikon to Torre de Moncorvo | 885.29 mi (1,424.73 km) |
| Opfikon to Torres Novas | 1,015.74 mi (1,634.67 km) |
