| Guardamar del Segura to Sangeorgiu de Mures | 1,402.26 mi (2,256.72 km) |
| Guardamar del Segura to Sangeorz-Bai | 1,427.98 mi (2,298.12 km) |
| Guardamar del Segura to Sannicolau Mare | 1,216.70 mi (1,958.09 km) |
| Guardamar del Segura to Santana | 1,263.28 mi (2,033.05 km) |
| Guardamar del Segura to Satu Mare | 1,358.67 mi (2,186.58 km) |
| Guardamar del Segura to Scobinti | 1,529.56 mi (2,461.58 km) |
| Guardamar del Segura to Scornicesti | 1,375.66 mi (2,213.91 km) |
| Guardamar del Segura to Sebes | 1,350.16 mi (2,172.88 km) |
| Guardamar del Segura to Seini | 1,374.84 mi (2,212.59 km) |
| Guardamar del Segura to Sfantu-Gheorghe | 1,452.17 mi (2,337.04 km) |
| Guardamar del Segura to Sibiu | 1,374.36 mi (2,211.82 km) |
| Guardamar del Segura to Sighetu Marmatiei | 1,405.58 mi (2,262.06 km) |
| Guardamar del Segura to Sighisoara | 1,411.26 mi (2,271.21 km) |
| Guardamar del Segura to Simeria | 1,322.19 mi (2,127.85 km) |
| Guardamar del Segura to Sinaia | 1,433.78 mi (2,307.44 km) |
