| Euclid to Sesimbra | 3,721.91 mi (5,989.84 km) |
| Euclid to Setubal | 3,729.18 mi (6,001.53 km) |
| Euclid to Sever do Vouga | 3,683.72 mi (5,928.38 km) |
| Euclid to Silves | 3,795.07 mi (6,107.58 km) |
| Euclid to Sines | 3,749.14 mi (6,033.66 km) |
| Euclid to Sintra | 3,696.66 mi (5,949.19 km) |
| Euclid to Sobrado de Paiva | 3,679.07 mi (5,920.89 km) |
| Euclid to Sobral de Monte Agraco | 3,700.89 mi (5,956.01 km) |
| Euclid to Soure | 3,692.63 mi (5,942.72 km) |
| Euclid to Tabua | 3,711.21 mi (5,972.61 km) |
| Euclid to Tavira | 3,835.37 mi (6,172.42 km) |
| Euclid to Tomar | 3,717.12 mi (5,982.13 km) |
| Euclid to Tondela | 3,703.75 mi (5,960.61 km) |
| Euclid to Torre de Moncorvo | 3,726.53 mi (5,997.27 km) |
| Euclid to Torres Novas | 3,715.87 mi (5,980.12 km) |
