| Serris to Sangeorz-Bai | 1,011.65 mi (1,628.10 km) |
| Serris to Sannicolau Mare | 852.66 mi (1,372.23 km) |
| Serris to Santana | 886.46 mi (1,426.62 km) |
| Serris to Satu Mare | 923.84 mi (1,486.77 km) |
| Serris to Scobinti | 1,113.70 mi (1,792.33 km) |
| Serris to Scornicesti | 1,068.54 mi (1,719.65 km) |
| Serris to Sebes | 988.95 mi (1,591.56 km) |
| Serris to Seini | 942.40 mi (1,516.64 km) |
| Serris to Sfantu-Gheorghe | 1,091.80 mi (1,757.09 km) |
| Serris to Sibiu | 1,019.19 mi (1,640.22 km) |
| Serris to Sighetu Marmatiei | 967.35 mi (1,556.80 km) |
| Serris to Sighisoara | 1,038.71 mi (1,671.65 km) |
| Serris to Simeria | 966.09 mi (1,554.78 km) |
| Serris to Sinaia | 1,093.29 mi (1,759.48 km) |
| Serris to Slatina | 1,064.14 mi (1,712.56 km) |
