| Guyancourt to Santiago do Cacem | 917.16 mi (1,476.02 km) |
| Guyancourt to Santo Andre | 916.68 mi (1,475.26 km) |
| Guyancourt to Santo Tirso | 725.92 mi (1,168.26 km) |
| Guyancourt to Sao Bras de Alportel | 945.94 mi (1,522.34 km) |
| Guyancourt to Sao Felix da Marinha | 746.86 mi (1,201.95 km) |
| Guyancourt to Sao Joao da Madeira | 749.53 mi (1,206.26 km) |
| Guyancourt to Sao Joao de Ver | 748.62 mi (1,204.79 km) |
| Guyancourt to Sao Mamede de Infesta | 737.41 mi (1,186.75 km) |
| Guyancourt to Sao Pedro do Sul | 743.47 mi (1,196.50 km) |
| Guyancourt to Satao | 733.64 mi (1,180.68 km) |
| Guyancourt to Seia | 749.84 mi (1,206.75 km) |
| Guyancourt to Senhora da Hora | 739.89 mi (1,190.73 km) |
| Guyancourt to Serpa | 890.42 mi (1,433.00 km) |
| Guyancourt to Serta | 796.96 mi (1,282.58 km) |
| Guyancourt to Sesimbra | 904.46 mi (1,455.58 km) |
