| Riorges to Popovo | 1,102.01 mi (1,773.52 km) |
| Riorges to Provadia | 1,163.04 mi (1,871.73 km) |
| Riorges to Radnevo | 1,111.49 mi (1,788.77 km) |
| Riorges to Radomir | 963.20 mi (1,550.12 km) |
| Riorges to Rakitovo | 1,031.54 mi (1,660.10 km) |
| Riorges to Rakovski | 1,065.62 mi (1,714.95 km) |
| Riorges to Razgrad | 1,111.88 mi (1,789.39 km) |
| Riorges to Razlog | 1,005.03 mi (1,617.44 km) |
| Riorges to Ruse | 1,079.26 mi (1,736.90 km) |
| Riorges to Samokov | 997.30 mi (1,605.00 km) |
| Riorges to Sandanski | 1,005.11 mi (1,617.57 km) |
| Riorges to Sevlievo | 1,055.30 mi (1,698.35 km) |
| Riorges to Shumen | 1,136.96 mi (1,829.76 km) |
| Riorges to Silistra | 1,136.54 mi (1,829.09 km) |
| Riorges to Sliven | 1,121.43 mi (1,804.77 km) |
