| Belfast to Santarem | 1,069.17 mi (1,720.67 km) |
| Belfast to Santiago do Cacem | 1,152.92 mi (1,855.45 km) |
| Belfast to Santo Andre | 1,150.90 mi (1,852.19 km) |
| Belfast to Santo Tirso | 923.72 mi (1,486.58 km) |
| Belfast to Sao Bras de Alportel | 1,208.97 mi (1,945.64 km) |
| Belfast to Sao Felix da Marinha | 945.18 mi (1,521.13 km) |
| Belfast to Sao Joao da Madeira | 953.79 mi (1,534.98 km) |
| Belfast to Sao Joao de Ver | 950.25 mi (1,529.28 km) |
| Belfast to Sao Mamede de Infesta | 933.65 mi (1,502.57 km) |
| Belfast to Sao Pedro do Sul | 961.73 mi (1,547.75 km) |
| Belfast to Satao | 961.43 mi (1,547.28 km) |
| Belfast to Seia | 982.76 mi (1,581.60 km) |
| Belfast to Senhora da Hora | 934.92 mi (1,504.61 km) |
| Belfast to Serpa | 1,153.20 mi (1,855.89 km) |
| Belfast to Serta | 1,027.27 mi (1,653.23 km) |
