| Kortenberg to Provadia | 1,195.78 mi (1,924.42 km) |
| Kortenberg to Radnevo | 1,170.20 mi (1,883.25 km) |
| Kortenberg to Radomir | 1,040.80 mi (1,675.00 km) |
| Kortenberg to Rakitovo | 1,110.34 mi (1,786.92 km) |
| Kortenberg to Rakovski | 1,131.83 mi (1,821.51 km) |
| Kortenberg to Razgrad | 1,144.10 mi (1,841.26 km) |
| Kortenberg to Razlog | 1,090.84 mi (1,755.54 km) |
| Kortenberg to Ruse | 1,109.60 mi (1,785.72 km) |
| Kortenberg to Samokov | 1,073.91 mi (1,728.30 km) |
| Kortenberg to Sandanski | 1,098.24 mi (1,767.44 km) |
| Kortenberg to Sevlievo | 1,106.71 mi (1,781.08 km) |
| Kortenberg to Shumen | 1,171.11 mi (1,884.72 km) |
| Kortenberg to Silistra | 1,153.25 mi (1,855.97 km) |
| Kortenberg to Sliven | 1,170.46 mi (1,883.67 km) |
| Kortenberg to Smolyan | 1,152.45 mi (1,854.69 km) |
