| Boulogne-Billancourt to Setubal | 901.91 mi (1,451.49 km) |
| Boulogne-Billancourt to Sever do Vouga | 762.76 mi (1,227.54 km) |
| Boulogne-Billancourt to Silves | 966.88 mi (1,556.04 km) |
| Boulogne-Billancourt to Sines | 933.87 mi (1,502.92 km) |
| Boulogne-Billancourt to Sintra | 901.76 mi (1,451.24 km) |
| Boulogne-Billancourt to Sobrado de Paiva | 743.46 mi (1,196.48 km) |
| Boulogne-Billancourt to Sobral de Monte Agraco | 882.06 mi (1,419.54 km) |
| Boulogne-Billancourt to Soure | 808.44 mi (1,301.06 km) |
| Boulogne-Billancourt to Tabua | 772.02 mi (1,242.45 km) |
| Boulogne-Billancourt to Tavira | 949.80 mi (1,528.56 km) |
| Boulogne-Billancourt to Tomar | 826.42 mi (1,330.00 km) |
| Boulogne-Billancourt to Tondela | 765.19 mi (1,231.45 km) |
| Boulogne-Billancourt to Torre de Moncorvo | 697.46 mi (1,122.45 km) |
| Boulogne-Billancourt to Torres Novas | 837.53 mi (1,347.87 km) |
| Boulogne-Billancourt to Torres Vedras | 882.06 mi (1,419.54 km) |
