| Severn to Santarem | 3,549.92 mi (5,713.05 km) |
| Severn to Santiago do Cacem | 3,582.68 mi (5,765.77 km) |
| Severn to Santo Andre | 3,579.26 mi (5,760.27 km) |
| Severn to Santo Tirso | 3,505.69 mi (5,641.86 km) |
| Severn to Sao Bras de Alportel | 3,648.09 mi (5,871.04 km) |
| Severn to Sao Felix da Marinha | 3,505.74 mi (5,641.95 km) |
| Severn to Sao Joao da Madeira | 3,515.74 mi (5,658.04 km) |
| Severn to Sao Joao de Ver | 3,511.28 mi (5,650.85 km) |
| Severn to Sao Mamede de Infesta | 3,502.63 mi (5,636.94 km) |
| Severn to Sao Pedro do Sul | 3,540.02 mi (5,697.11 km) |
| Severn to Satao | 3,556.62 mi (5,723.82 km) |
| Severn to Seia | 3,566.31 mi (5,739.42 km) |
| Severn to Senhora da Hora | 3,500.52 mi (5,633.54 km) |
| Severn to Serpa | 3,639.45 mi (5,857.13 km) |
| Severn to Serta | 3,563.48 mi (5,734.87 km) |
