| Siirt to Popovo | 903.19 mi (1,453.54 km) |
| Siirt to Provadia | 842.50 mi (1,355.87 km) |
| Siirt to Radnevo | 896.81 mi (1,443.27 km) |
| Siirt to Radomir | 1,048.99 mi (1,688.18 km) |
| Siirt to Rakitovo | 984.64 mi (1,584.62 km) |
| Siirt to Rakovski | 944.69 mi (1,520.32 km) |
| Siirt to Razgrad | 894.10 mi (1,438.92 km) |
| Siirt to Razlog | 1,014.64 mi (1,632.90 km) |
| Siirt to Ruse | 927.46 mi (1,492.60 km) |
| Siirt to Samokov | 1,015.83 mi (1,634.82 km) |
| Siirt to Sandanski | 1,020.70 mi (1,642.65 km) |
| Siirt to Sevlievo | 950.18 mi (1,529.17 km) |
| Siirt to Shumen | 868.50 mi (1,397.71 km) |
| Siirt to Silistra | 875.11 mi (1,408.35 km) |
| Siirt to Sliven | 884.23 mi (1,423.03 km) |
