| Royston to Santarem | 977.66 mi (1,573.39 km) |
| Royston to Santiago do Cacem | 1,056.22 mi (1,699.82 km) |
| Royston to Santo Andre | 1,055.03 mi (1,697.90 km) |
| Royston to Santo Tirso | 840.25 mi (1,352.25 km) |
| Royston to Sao Bras de Alportel | 1,098.02 mi (1,767.10 km) |
| Royston to Sao Felix da Marinha | 862.42 mi (1,387.93 km) |
| Royston to Sao Joao da Madeira | 868.05 mi (1,396.99 km) |
| Royston to Sao Joao de Ver | 865.84 mi (1,393.44 km) |
| Royston to Sao Mamede de Infesta | 851.54 mi (1,370.42 km) |
| Royston to Sao Pedro do Sul | 868.38 mi (1,397.52 km) |
| Royston to Satao | 862.66 mi (1,388.32 km) |
| Royston to Seia | 881.97 mi (1,419.39 km) |
| Royston to Senhora da Hora | 853.56 mi (1,373.67 km) |
| Royston to Serpa | 1,040.99 mi (1,675.31 km) |
| Royston to Serta | 929.68 mi (1,496.17 km) |
