| Syston to Popovo | 1,406.05 mi (2,262.82 km) |
| Syston to Provadia | 1,461.29 mi (2,351.72 km) |
| Syston to Radnevo | 1,438.85 mi (2,315.60 km) |
| Syston to Radomir | 1,311.06 mi (2,109.95 km) |
| Syston to Rakitovo | 1,380.50 mi (2,221.71 km) |
| Syston to Rakovski | 1,401.22 mi (2,255.05 km) |
| Syston to Razgrad | 1,409.90 mi (2,269.02 km) |
| Syston to Razlog | 1,361.29 mi (2,190.78 km) |
| Syston to Ruse | 1,375.38 mi (2,213.46 km) |
| Syston to Samokov | 1,344.06 mi (2,163.06 km) |
| Syston to Sandanski | 1,368.83 mi (2,202.91 km) |
| Syston to Sevlievo | 1,374.98 mi (2,212.81 km) |
| Syston to Shumen | 1,436.99 mi (2,312.60 km) |
| Syston to Silistra | 1,416.59 mi (2,279.78 km) |
| Syston to Sliven | 1,438.15 mi (2,314.49 km) |
