| Boppard to Setubal | 1,142.68 mi (1,838.97 km) |
| Boppard to Sever do Vouga | 1,010.28 mi (1,625.89 km) |
| Boppard to Silves | 1,200.37 mi (1,931.81 km) |
| Boppard to Sines | 1,172.31 mi (1,886.64 km) |
| Boppard to Sintra | 1,145.47 mi (1,843.45 km) |
| Boppard to Sobrado de Paiva | 991.83 mi (1,596.20 km) |
| Boppard to Sobral de Monte Agraco | 1,125.72 mi (1,811.68 km) |
| Boppard to Soure | 1,054.20 mi (1,696.57 km) |
| Boppard to Tabua | 1,016.82 mi (1,636.41 km) |
| Boppard to Tavira | 1,179.01 mi (1,897.43 km) |
| Boppard to Tomar | 1,069.58 mi (1,721.32 km) |
| Boppard to Tondela | 1,010.84 mi (1,626.79 km) |
| Boppard to Torre de Moncorvo | 942.43 mi (1,516.70 km) |
| Boppard to Torres Novas | 1,080.60 mi (1,739.05 km) |
| Boppard to Torres Vedras | 1,126.39 mi (1,812.74 km) |
