| Borgerhout to Provadia | 1,206.59 mi (1,941.82 km) |
| Borgerhout to Radnevo | 1,182.61 mi (1,903.23 km) |
| Borgerhout to Radomir | 1,054.65 mi (1,697.29 km) |
| Borgerhout to Rakitovo | 1,124.05 mi (1,808.98 km) |
| Borgerhout to Rakovski | 1,144.78 mi (1,842.34 km) |
| Borgerhout to Razgrad | 1,155.03 mi (1,858.83 km) |
| Borgerhout to Razlog | 1,104.99 mi (1,778.31 km) |
| Borgerhout to Ruse | 1,120.50 mi (1,803.28 km) |
| Borgerhout to Samokov | 1,087.61 mi (1,750.33 km) |
| Borgerhout to Sandanski | 1,112.76 mi (1,790.81 km) |
| Borgerhout to Sevlievo | 1,118.88 mi (1,800.67 km) |
| Borgerhout to Shumen | 1,182.07 mi (1,902.36 km) |
| Borgerhout to Silistra | 1,163.19 mi (1,871.98 km) |
| Borgerhout to Sliven | 1,182.31 mi (1,902.74 km) |
| Borgerhout to Smolyan | 1,166.16 mi (1,876.75 km) |
