| Sliven to Sangeorz-Bai | 333.71 mi (537.06 km) |
| Sliven to Sannicolau Mare | 366.41 mi (589.67 km) |
| Sliven to Santana | 347.55 mi (559.33 km) |
| Sliven to Satu Mare | 390.49 mi (628.43 km) |
| Sliven to Scobinti | 326.05 mi (524.73 km) |
| Sliven to Scornicesti | 157.94 mi (254.18 km) |
| Sliven to Sebes | 264.37 mi (425.47 km) |
| Sliven to Seini | 379.99 mi (611.54 km) |
| Sliven to Sfantu-Gheorghe | 221.39 mi (356.29 km) |
| Sliven to Sibiu | 240.43 mi (386.94 km) |
| Sliven to Sighetu Marmatiei | 381.28 mi (613.61 km) |
| Sliven to Sighisoara | 255.71 mi (411.52 km) |
| Sliven to Simeria | 273.64 mi (440.38 km) |
| Sliven to Sinaia | 188.30 mi (303.04 km) |
| Sliven to Slatina | 155.81 mi (250.76 km) |
