| Big Spring to Santarem | 4,989.48 mi (8,029.80 km) |
| Big Spring to Santiago do Cacem | 5,027.83 mi (8,091.52 km) |
| Big Spring to Santo Andre | 5,024.35 mi (8,085.92 km) |
| Big Spring to Santo Tirso | 4,933.40 mi (7,939.54 km) |
| Big Spring to Sao Bras de Alportel | 5,095.50 mi (8,200.41 km) |
| Big Spring to Sao Felix da Marinha | 4,935.54 mi (7,942.99 km) |
| Big Spring to Sao Joao da Madeira | 4,946.07 mi (7,959.93 km) |
| Big Spring to Sao Joao de Ver | 4,941.40 mi (7,952.41 km) |
| Big Spring to Sao Mamede de Infesta | 4,931.41 mi (7,936.33 km) |
| Big Spring to Sao Pedro do Sul | 4,970.35 mi (7,999.01 km) |
| Big Spring to Satao | 4,986.37 mi (8,024.79 km) |
| Big Spring to Seia | 4,997.77 mi (8,043.14 km) |
| Big Spring to Senhora da Hora | 4,929.48 mi (7,933.23 km) |
| Big Spring to Serpa | 5,083.08 mi (8,180.42 km) |
| Big Spring to Serta | 4,999.09 mi (8,045.26 km) |
