| Royston to Sesimbra | 1,036.61 mi (1,668.27 km) |
| Royston to Setubal | 1,027.28 mi (1,653.24 km) |
| Royston to Sever do Vouga | 875.74 mi (1,409.37 km) |
| Royston to Silves | 1,105.30 mi (1,778.81 km) |
| Royston to Sines | 1,063.39 mi (1,711.37 km) |
| Royston to Sintra | 1,019.92 mi (1,641.40 km) |
| Royston to Sobrado de Paiva | 854.69 mi (1,375.49 km) |
| Royston to Sobral de Monte Agraco | 1,001.03 mi (1,611.00 km) |
| Royston to Soure | 924.61 mi (1,488.01 km) |
| Royston to Tabua | 892.41 mi (1,436.20 km) |
| Royston to Tavira | 1,096.32 mi (1,764.36 km) |
| Royston to Tomar | 948.80 mi (1,526.95 km) |
| Royston to Tondela | 883.55 mi (1,421.93 km) |
| Royston to Torre de Moncorvo | 821.01 mi (1,321.29 km) |
| Royston to Torres Novas | 959.68 mi (1,544.45 km) |
