| Brussels to Provadia | 1,202.55 mi (1,935.32 km) |
| Brussels to Radnevo | 1,176.57 mi (1,893.51 km) |
| Brussels to Radomir | 1,046.76 mi (1,684.59 km) |
| Brussels to Rakitovo | 1,116.34 mi (1,796.57 km) |
| Brussels to Rakovski | 1,138.06 mi (1,831.53 km) |
| Brussels to Razgrad | 1,150.86 mi (1,852.12 km) |
| Brussels to Razlog | 1,096.70 mi (1,764.97 km) |
| Brussels to Ruse | 1,116.35 mi (1,796.59 km) |
| Brussels to Samokov | 1,079.92 mi (1,737.96 km) |
| Brussels to Sandanski | 1,103.97 mi (1,776.67 km) |
| Brussels to Sevlievo | 1,113.15 mi (1,791.45 km) |
| Brussels to Shumen | 1,177.85 mi (1,895.57 km) |
| Brussels to Silistra | 1,160.22 mi (1,867.19 km) |
| Brussels to Sliven | 1,176.98 mi (1,894.16 km) |
| Brussels to Smolyan | 1,158.44 mi (1,864.34 km) |
