| Opfikon to Sangeorgiu de Mures | 750.51 mi (1,207.83 km) |
| Opfikon to Sangeorz-Bai | 752.22 mi (1,210.58 km) |
| Opfikon to Sannicolau Mare | 577.47 mi (929.35 km) |
| Opfikon to Santana | 614.51 mi (988.97 km) |
| Opfikon to Satu Mare | 666.67 mi (1,072.90 km) |
| Opfikon to Scobinti | 856.83 mi (1,378.94 km) |
| Opfikon to Scornicesti | 790.64 mi (1,272.41 km) |
| Opfikon to Sebes | 717.08 mi (1,154.03 km) |
| Opfikon to Seini | 685.17 mi (1,102.67 km) |
| Opfikon to Sfantu-Gheorghe | 822.24 mi (1,323.26 km) |
| Opfikon to Sibiu | 747.03 mi (1,202.23 km) |
| Opfikon to Sighetu Marmatiei | 712.57 mi (1,146.77 km) |
| Opfikon to Sighisoara | 770.19 mi (1,239.49 km) |
| Opfikon to Simeria | 692.78 mi (1,114.92 km) |
| Opfikon to Sinaia | 820.39 mi (1,320.29 km) |
