| Amarillo to Santarem | 4,887.72 mi (7,866.03 km) |
| Amarillo to Santiago do Cacem | 4,929.60 mi (7,933.42 km) |
| Amarillo to Santo Andre | 4,926.09 mi (7,927.77 km) |
| Amarillo to Santo Tirso | 4,825.37 mi (7,765.68 km) |
| Amarillo to Sao Bras de Alportel | 4,998.71 mi (8,044.64 km) |
| Amarillo to Sao Felix da Marinha | 4,828.54 mi (7,770.79 km) |
| Amarillo to Sao Joao da Madeira | 4,839.30 mi (7,788.11 km) |
| Amarillo to Sao Joao de Ver | 4,834.54 mi (7,780.44 km) |
| Amarillo to Sao Mamede de Infesta | 4,823.91 mi (7,763.33 km) |
| Amarillo to Sao Pedro do Sul | 4,863.51 mi (7,827.06 km) |
| Amarillo to Satao | 4,879.18 mi (7,852.29 km) |
| Amarillo to Seia | 4,891.43 mi (7,871.99 km) |
| Amarillo to Senhora da Hora | 4,822.08 mi (7,760.39 km) |
| Amarillo to Serpa | 4,983.64 mi (8,020.40 km) |
| Amarillo to Serta | 4,895.00 mi (7,877.73 km) |
