| Grande-Synthe to Santiago do Cacem | 1,046.38 mi (1,683.99 km) |
| Grande-Synthe to Santo Andre | 1,045.60 mi (1,682.72 km) |
| Grande-Synthe to Santo Tirso | 842.49 mi (1,355.85 km) |
| Grande-Synthe to Sao Bras de Alportel | 1,080.77 mi (1,739.34 km) |
| Grande-Synthe to Sao Felix da Marinha | 864.21 mi (1,390.81 km) |
| Grande-Synthe to Sao Joao da Madeira | 868.31 mi (1,397.41 km) |
| Grande-Synthe to Sao Joao de Ver | 866.77 mi (1,394.94 km) |
| Grande-Synthe to Sao Mamede de Infesta | 853.99 mi (1,374.37 km) |
| Grande-Synthe to Sao Pedro do Sul | 865.18 mi (1,392.37 km) |
| Grande-Synthe to Satao | 857.15 mi (1,379.46 km) |
| Grande-Synthe to Seia | 874.91 mi (1,408.03 km) |
| Grande-Synthe to Senhora da Hora | 856.27 mi (1,378.04 km) |
| Grande-Synthe to Serpa | 1,024.38 mi (1,648.58 km) |
| Grande-Synthe to Serta | 922.65 mi (1,484.86 km) |
| Grande-Synthe to Sesimbra | 1,030.59 mi (1,658.57 km) |
