| Belfast to Sesimbra | 1,125.88 mi (1,811.93 km) |
| Belfast to Setubal | 1,119.10 mi (1,801.02 km) |
| Belfast to Sever do Vouga | 964.38 mi (1,552.03 km) |
| Belfast to Silves | 1,208.72 mi (1,945.25 km) |
| Belfast to Sines | 1,158.08 mi (1,863.75 km) |
| Belfast to Sintra | 1,103.37 mi (1,775.71 km) |
| Belfast to Sobrado de Paiva | 943.23 mi (1,517.99 km) |
| Belfast to Sobral de Monte Agraco | 1,086.80 mi (1,749.04 km) |
| Belfast to Soure | 1,012.81 mi (1,629.96 km) |
| Belfast to Tabua | 988.38 mi (1,590.64 km) |
| Belfast to Tavira | 1,210.47 mi (1,948.06 km) |
| Belfast to Tomar | 1,042.56 mi (1,677.84 km) |
| Belfast to Tondela | 977.86 mi (1,573.72 km) |
| Belfast to Torre de Moncorvo | 927.24 mi (1,492.25 km) |
| Belfast to Torres Novas | 1,052.34 mi (1,693.58 km) |
