| Ashburn to Santarem | 3,591.07 mi (5,779.28 km) |
| Ashburn to Santiago do Cacem | 3,624.06 mi (5,832.36 km) |
| Ashburn to Santo Andre | 3,620.64 mi (5,826.85 km) |
| Ashburn to Santo Tirso | 3,546.37 mi (5,707.32 km) |
| Ashburn to Sao Bras de Alportel | 3,689.57 mi (5,937.79 km) |
| Ashburn to Sao Felix da Marinha | 3,546.50 mi (5,707.54 km) |
| Ashburn to Sao Joao da Madeira | 3,556.52 mi (5,723.67 km) |
| Ashburn to Sao Joao de Ver | 3,552.05 mi (5,716.47 km) |
| Ashburn to Sao Mamede de Infesta | 3,543.35 mi (5,702.47 km) |
| Ashburn to Sao Pedro do Sul | 3,580.80 mi (5,762.75 km) |
| Ashburn to Satao | 3,597.38 mi (5,789.42 km) |
| Ashburn to Seia | 3,607.14 mi (5,805.14 km) |
| Ashburn to Senhora da Hora | 3,541.24 mi (5,699.08 km) |
| Ashburn to Serpa | 3,680.77 mi (5,923.63 km) |
| Ashburn to Serta | 3,604.48 mi (5,800.85 km) |
