| Buggenhout to Provadia | 1,212.04 mi (1,950.59 km) |
| Buggenhout to Radnevo | 1,186.67 mi (1,909.77 km) |
| Buggenhout to Radomir | 1,057.38 mi (1,701.69 km) |
| Buggenhout to Rakitovo | 1,126.92 mi (1,813.60 km) |
| Buggenhout to Rakovski | 1,148.36 mi (1,848.10 km) |
| Buggenhout to Razgrad | 1,160.38 mi (1,867.45 km) |
| Buggenhout to Razlog | 1,107.43 mi (1,782.24 km) |
| Buggenhout to Ruse | 1,125.87 mi (1,811.91 km) |
| Buggenhout to Samokov | 1,090.49 mi (1,754.97 km) |
| Buggenhout to Sandanski | 1,114.83 mi (1,794.15 km) |
| Buggenhout to Sevlievo | 1,123.16 mi (1,807.55 km) |
| Buggenhout to Shumen | 1,187.39 mi (1,910.93 km) |
| Buggenhout to Silistra | 1,169.35 mi (1,881.89 km) |
| Buggenhout to Sliven | 1,186.87 mi (1,910.08 km) |
| Buggenhout to Smolyan | 1,169.03 mi (1,881.37 km) |
